Answers
The sweetened iced tea is generally not an electrolyte mixture as it lacks ions that conduct electricity.
Sweetened iced tea is generally not an electrolyte mixture. Electrolytes are substances that, when dissolved in water or other solvents, produce ions that can conduct electricity. Common electrolytes include salts, acids, and bases.
In sweetened iced tea, the primary dissolved substances are sugar (sucrose) and various flavor compounds. While sugar dissolves in water to form sugar molecules, it does not dissociate into ions, so it does not contribute to the solution's electrical conductivity. Therefore, sweetened iced tea does not contain significant amounts of electrolytes.
However, if you were to add other substances to the iced tea, such as salts or acids, it could potentially become an electrolyte mixture, depending on the extent to which these substances dissociate into ions when dissolved in water.
Regular unsweetened iced tea, on the other hand, would contain water and trace amounts of naturally occurring electrolytes found in the tea leaves, such as potassium, calcium, and magnesium ions. These naturally occurring electrolytes would be present in very small amounts, and the iced tea's overall conductivity would still be relatively low compared to solutions containing significant amounts of dissolved electrolytes.
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Related Questions
-Convert 6.02 x 1020 formula units of MgCl₂ to mol of MgCl₂:
Answers
6.02 x \(10^{20\) formula units of MgCl₂ is equal to 0.1 moles of MgCl₂.
To convert formula units of MgCl₂ to moles of MgCl₂, we need to use Avogadro's number, which relates the number of formula units to the number of moles.
Avogadro's number (NA) is approximately 6.022 x 10^23 formula units per mole.
Given that we have 6.02 x 10^20 formula units of MgCl₂, we can set up a conversion factor to convert to moles:
(6.02 x 10^20 formula units MgCl₂) * (1 mol MgCl₂ / (6.022 x 10^23 formula units MgCl₂))
The formula units of MgCl₂ cancel out, and we are left with moles of MgCl₂:
(6.02 x 10^20) * (1 mol / 6.022 x 10^23) = 0.1 mol
Therefore, 6.02 x 10^20 formula units of MgCl₂ is equal to 0.1 moles of MgCl₂.
It's important to note that this conversion assumes that each formula unit of MgCl₂ represents one mole of MgCl₂. This is based on the stoichiometry of the compound, where there is one mole of MgCl₂ for every one formula unit.
Additionally, this conversion is valid for any substance, not just MgCl₂, as long as you know the value of Avogadro's number and the number of formula units or particles you have.
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ACTIVITY: SOLUTION CONCENTRATION VS. CONDUCTIVITY
Here is your goal for this lesson:
Graph experimental data and interpret results for peer review
A chemistry student carried out an experiment with a conducting apparatus (ammeter) similar to the one below. This ammeter measures in milliamperes (mA). The following data was taken.
Solution Reading
0.1 M H2SO4 150 mA
0.1 M Ba(OH)2 150 mA
To 30 mL of the Ba(OH)2 solution, 10 mL portions of H2SO4 were added until a total of 50 mL of H2SO4 were used. The following results were recorded.
DATA TABLE
Total H2SO4 Added Meter Reading Observations
0 mL 150 mA Ba(OH)2 and H2SO4 clear, colorless
10 mL 65 mA milky white precipitate forms
20 mL 31 mA more precipitate forms
30 mL 0 mA precipitate heavy and settles
40 mL 29 mA no added precipitate seen to form
50 mL 62 mA no change seen
Questions
1. Did you plot the data?
yes
no
2. Did you label your graph axes?
no
yes
3. Did you give your graph a title?
no
yes
4. Does the Ba(OH)2 solution contain ions?
yes
no
5. Does the H2SO4 solution contain ions?
yes
no
6. Explain the data.
Is there any evidence that a reaction has occurred?
7. Does the conductivity increase or decrease?
8. Does the number of ions in solution increase, decrease, or remain constant?
9. What is the indicator of the number of ions in solution?
10. How does this evidence indicate that the reaction has occurred between ions?
11. The Ba(OH)2 dissociates as Ba+2 + 2 OH-. H2SO4 dissociates as 2 H+ + SO4-2.
Write a balanced equation for this reaction.
12. When the conductivity is at a minimum, what must be true about the amount of Ba(OH)2?
13. Why does it not conduct at this low point?
14. Why does it conduct more before and after this minimum point?
Answers
Answer:
the amount of Ba(OH)2 compared to H2SO4?
The Ba(OH)2 dissociates as Ba+2 + 2 OH-. H2SO4 dissociates as 2 H+ + SO4-2.
Why does it not conduct at this low point?
Why does it conduct more before and after this minimum point
Can someone please help with this I am not that great at chemistry. Thankyou fo any help that I ge
0.22 L of HNO3 is titrated to equivalence using 0.18 L of 0.2 MNaOH. What is the concentration of the HNO3?
Answers
Answer:
0.16 M
Explanation:
Data provided as per the question is below:-
Volume of \(HNO_3\) = 0.22 L
The Volume of NaOH = 0.18 L
Morality of NaOH = 0.2
According to the given situation, the calculation of the concentration of the \(HNO_3\) is shown below:-
For equivalence,
Number of the equivalent of \(HNO_3\) = Number of equivalents of NaOH
\(= \frac{0.18\times0.2}{0.22}\)
\(= \frac{0.036}{0.22}\)
= 0.16363 M
or
= 0.16 M
Calculate the molarity of a potassium hydroxide solution if 25.0 ml of this solution was completely neutralized by 23.3 ml of 0.506 M sulfuric acid.
Answers
Answer: 0.943 M of potassium hydroxide solution is required.
Explanation:
A neutralization reaction is defined as the reaction in which an acid reacts with a base to form a salt and water molecule.
To calculate the molarity of potassium hydroxide, the equation used is:
\(n_1M_1V_1=n_2M_2V_2\) ........(1)
where,
\(n_1, M_1\text{ and }V_1\) are the n-factor, molarity and volume of acid that is \(H_2SO_4\)
\(n_2, M_2\text{ and }V_2\) are the n-factor, molarity and volume of the base that is KOH
We are given:
\(n_1=2\\M_1=0.506M\\V_1=23.3mL\\n_2=1\\M_2=?M\\V_2=25.0mL\)
Putting values in equation 1, we get:
\(2\times 0.506\times 23.3=1\times M_2\times 25.0\\\\M_2=\frac{2\times 0.506\times 23.3}{1\times 25.0}\\\\M_2=0.943M\)
Hence, 0.943 M of potassium hydroxide solution is required.
The weight for this compound is 74. what is the molecular formula
Answers
Explanation:
ur question is incomplete what elements make the compound and we talk of mass not weight and what are the units kjmol ,grams ,kgs
Which of the following sources does not contribute to ozone depletion?
A. Propellants with chlorofluorocarbons
B. Halons used in fire protection
C. Methyl Chloroform in cleaning agents
D. Nitrates used in crop fertilizers
Answers
Option (d) is correct. Nitrates used in crop fertilizers does not contribute to ozone depletion.
The Ozone depletion can be defined as the gradual thinning of ozone layer of the earth in the upper atmosphere caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities. Ozone layer depletion is a major environmental problem because it increases the amount of ultraviolet radiation that reaches the surface of the earth which increases the rate of skin cancer, eye cataracts and immune system damage. The Ozone depleting substances are chlorofluorocarbons (CFCs), halon, carbon tetrachloride (CCl4), methyl chloroform (CH3CCl3), hydrochlorofluorocarbons (HCFCs), methyl bromide (CH3Br), bromochloromethane (CH2BrCl).
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Write a statement explaining your claim about which experimental setup will dissolve 100 g of
sugar in 1 liter of water at the fastest rate. Next, provide evidence to support your claim about
which setup will result in the fastest rate. Finally, provide reasoning that connects your evidence
to your claim.
Answers
Set up A will dissolve the 100g of sugar fastest in 1 L of water due to the inclusion of physical agitation in the form of stirring.
Dissolution of a solid?We have to note that energy and sometimes physical agitation are necessary in order to dissolve a solid in a liquid. In this case, we want to dissolve sugar in water.
Set up A in which the temperature is raised to 80 degrees with agitation will dissolve the 100g of sugar fastest in 1 L of water due to the inclusion of physical agitation in the form of stirring.
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Find Kcat value =slope
From the graph attached
Answers
The determination of kcat is an important step in characterizing enzymatic reactions and understanding the catalytic efficiency of enzymes.
Based on the provided data, it seems that an enzymatic reaction was carried out at different substrate concentrations ([E]). The corresponding reaction rates were measured and plotted against the substrate concentration. The slope of this plot represents the catalytic efficiency of the enzyme, or kcat.
To determine kcat, we need to calculate the slope of the line that best fits the data points. This can be done using linear regression analysis or by simply calculating the change in y over the change in x between two data points. The slope of the line should be in units of [min^-1].
Once we have determined the slope, we can use it to calculate the kcat value by multiplying it by the total enzyme concentration ([E]total) in the reaction mixture. This will give us the turnover number, or the number of substrate molecules converted to product per unit time by each active site of the enzyme.
Finally, to express kcat in terms of the number of substrate molecules converted per second, we can divide it by the Avogadro constant (6.022 x 10^23). The resulting value will be in units of [s^-1].
Overall, the determination of kcat is an important step in characterizing enzymatic reactions and understanding the catalytic efficiency of enzymes.
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A 1.85-mole sample of H₂O2 weighs
(A) 33.3 amu
(B) 35.9 g
C) 62.9 g
(D) 1.85 g
E 33.3 g
Answers
Considering the definition of molar mass, the correct answer is option c): the mass of 1.85 moles H₂O₂ is 62.9 grams.
Definition of molar massThe molar mass of substance is a property defined as the amount of mass that a substance contains in one mole.
The molar mass of a compound is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.
Molar mass of H₂O₂In this case, you know the molar mass of the elements is:
O= 16 g/moleH= 1 g/moleSo, the molar mass of the compound H₂O₂ is calculated as:
H₂O₂= 2× 1 g/mole + 2× 16 g/mole
Solving:
H₂O₂= 34 g/mole
Mass of 1.85 moles H₂O₂You can apply the following rule of three: If by definition of molar mass 1 mole of the compound contains 34 grams, 1.85 moles of the compound contains how much mass?
mass= (1.85 moles× 34 grams)÷ 1 mole
mass= 62.9 grams
Finally, the mass of 1.85 moles H₂O₂ is 62.9 grams.
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Can you identify some techniques in separating mixtures? In what
ways can you separate the different raptures krund at home as Ilustrated
in Figare 2 below? This lesson will help you to learn more!
Answers
Answer:
Boiling
Filtration
Distillation
Evaporation
Please I have a D in chem and grades close tomorrow ;-;
Which of the following polyatomic lons will form an lonic compound with a single sodium lon?
co₂2-
нсо3^1-
S04^2-
S03^2-
Answers
D is a green crystalline solid that dissolves in water to give a very pale green solution. Addition of sodium hydroxide solution to a solution of D produces a green precipitate, E, which turns orange-brown around the top after standing in air. Addition of dilute hydrochloric acid and barium chloride solution to a solution of D gives a white precipitate, F. a State the names of D, E and F.
Answers
The chemical D is FeSO4 · 7H2O which is a green crystalline solid. When dissolved in water it gives a very pale green solution. The chemical E is Fe(OH)3 which is reddish brown in color. The chemical F is BaSO4 which is white in color.
D = FeSO4 · 7H2O hydrated ferrous sulfate.
E = Fe(OH)3 ferric hydroxide
F= BaSO4 barium sulphate
A chemical response happens while one or extra chemical substances are modified into one or extra different chemicals. For Example iron and oxygen combine to make rust. vinegar and baking soda combine to make sodium acetate, carbon dioxide, and water. techniques concerning the atomic nucleus are called nuclear reactions. The substances that participate in a chemical reaction are known as reactants.
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Which severe weather event is most likely to occur when glaciers melt at a faster than usual rate? Floods Hurricane Lightning Winter weather
Answers
The mass of an empty crucible was 17.556g. The mass of the crucible and a hydrate was 21.018 g. The mass of the crucible and anhydrous salt (after heating) was 19.641g. A. Calculate the mass of water lost due to heating. B. Calculate the mass percentage of water.
Answers
Answer:
A. 1.377 g
B. 16.5%
Explanation:
To find the water loss, subtract the salt and crucible mass from the hydrate and crucible mass
21.018 - 19.641 = 1.377
To find the water mass percentage, divide the empty crucible mass by the mass of the hydrate and crucible. Then, subtract that number from 1.
17.556 ÷ 21.018 = 0.835284
1 - 0.835284 = 0.164716
If you want to add an extra step, multiply this number by 100 to get the percentage.
0.164716 x 100 = 16.4716
Find reaction type and products for each equation please. FIRST CORRECT ANSWERS GETS BRAINLIEST HELP!!!
Answers
Reactant: C3H8 + O2 = Product: CO2 + H2O
Reactant: Zn + HCI = Product: ZnCl₂
Reactant: KI + Pb(NO3)2 = Product: KNO3 and PbI2
Reactant: Mg(CIO3)2 = Product: MgCl2 and O2
Reactant: F2 + KBr = Product: KF and Br2
What are chemical reactions?Chemical reactions entail the conversion of one or more substances into novel species, thanks to the breaking and forging of chemical bonds.
Essentially, such transformations involve the reconfiguration of atoms and/or molecules, culminating in distinct chemical and physical attributes contrasting from those of the initial materials.
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how to solve x² in differential
Answers
Answer:
x² = mutiphy by them self
Explanation:
Please what kind of bond exists between 1 atom of sulphur and 2 atoms of oxygen?
And secondly, how do I get to draw the chemical combination of SO2 in a diagram.
Answers
Answer: Nitrogen, Oxygen
Sulfur,
Iodine
Explanation:
Answer:
The O2 molecule is not the only elemental form of oxygen. In the presence of lightning or another source of a spark, O2 molecules dissociate to form oxygen atoms.
Explanation:
H-O-O
The half reaction with a more positive standard reduction potential will
Answers
The half reaction with a more positive standard reduction potential will proceed spontaneously in a redox reaction
The half reaction with a more positive standard reduction potential will undergo reduction when compared to the half reaction with a more negative standard reduction potential.
Oxidation-reduction reactions, often known as redox reactions, are a set of chemical reactions that involve electron transfer between reactants. In a redox reaction, one reactant is oxidized, losing electrons, while the other reactant is reduced, gaining electrons.
The oxidation half-reaction is the process of losing electrons and increasing the oxidation number, whereas the reduction half-reaction is the process of gaining electrons and decreasing the oxidation number. The total reaction is referred to as the redox reaction.
Half-reaction:Half-reaction refers to the two parts of an oxidation-reduction reaction that happen separately. A half-reaction must always be either an oxidation reaction or a reduction reaction. It also describes the movement of electrons and hydrogen ions in an equation.
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what is the number of moles of water in 100 g of vinegar?
Answers
Answer:
The number of moles of water in 100 g of vinegar is 0.47 moles.
Explanation:
One of the radiographic devices used in a dentist's office emits an X-ray of wavelength 2.090 × 10−11 m. What is the energy, in joules, and frequency of this X-ray?
Answers
1. The energy of the x-ray is 9.51×10⁻¹⁵ J
2. The frequency of the x-ray is 1.44×10¹⁹ Hertz
1. How do i determine the energy?The energy of the x-ray can be obtained as follow:
Wavelength of x-ray (λ) = 2.090×10⁻¹¹ mSpeed of x-ray (v) = 3×10⁸ m/sPlanck's constant (h) = 6.626×10⁻³⁴ JsEnergy of x-ray (E) =?E = hv / λ
E = (6.626×10⁻³⁴ × 3×10⁸) / 2.090×10⁻¹¹
Energy of x-ray = 9.51×10⁻¹⁵ J
2. How do i determine the frequency?The frequency of the x-ray can be obtain as follow:
Wavelength of x-ray (λ) = 2.090×10⁻¹¹ mSpeed of x-ray (v) = 3×10⁸ m/sFrequency of x-ray (f) =?f = v / λ
f = 3×10⁸ / 2.090×10⁻¹¹
Frequency of x-ray = 1.44×10¹⁹ Hertz
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The following balanced equation shows the formation of ammonia.
N2 + 3H2 Right arrow. 2NH3
How many moles of nitrogen are needed to completely convert 6.34 mol of hydrogen?
Answers
Answer:
For completely converting 6.34 moles of hydrogen to ammonia, 2.11 moles of Nitrogen is required.
The chemical reaction for the formation of ammonia by nitrogen and hydrogen reaction has been as follows:
For the formation of 2 moles of ammonia, 3 moles of hydrogen, and 1 mole of nitrogen s required.
The utilization of 3 moles of hydrogen requires 1 mole of Nitrogen.
So, the utilization of 6.34 moles of hydrogen requires:
3 moles Hydrogen = 1 -mole Nitrogen
6.34 moles hydrogen = moles of Nitrogen
6.34 moles of hydrogen requires = 2.11 moles of Nitrogen.
For completely converting 6.34 moles of hydrogen to ammonia, 2.11 moles of Nitrogen is required.
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rating answer section
Answer rating5.0
(20 votes)
where do electrons get their energy in photosystem ii
Answers
The electrons in photosystem II receive their energy from light with a wavelength of 680 nm. This light is absorbed by chlorophyll and used to eject the electrons from the photosytem.
Simplest explanation of a photosystem
For the photochemistry of photosynthesis, a protein complex, or a grouping of two or more proteins, is known as a photosystem. Specifically, it transports electrons and absorbs light photons (e- in our diagram). The two photosystems are photosystem I and photosystem II.
What is the process of a photosystem?
Photosystems are parts of the thylakoid membrane that absorb light and convert it to chemical energy. Each photosystem consists of a reaction center surrounded by a number of light-harvesting complexes.
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The following series of reactions were carried out.
PbCO3(s) + 2HNO3(aq) → Pb(NO3)2(aq) + H₂O(1) + CO₂(g)
Pb(NO3)2(aq) + 2HBr(aq) → 2HNO3(aq) + PbBr2(s)
(a) If a student starts with 2.457 g of lead(II) carbonate for the first reaction and all
other reagents are added in excess, what is the theoretical yield of lead(II) bromide
solid?
Answers
First, let's calculate the molar mass of PbCO3:
PbCO3: Pb (207.2 g/mol) + C (12.0 g/mol) + 3O (16.0 g/mol) = 267.2 g/mol
Next, we can calculate the number of moles of PbCO3:
moles = mass / molar mass = 2.457 g / 267.2 g/mol ≈ 0.00919 mol
From the balanced equation, we can see that the mole ratio between PbCO3 and PbBr2 is 1:1. Therefore, the moles of PbBr2 formed will be the same as the moles of PbCO3 used.
The molar mass of PbBr2 is:
PbBr2: Pb (207.2 g/mol) + 2Br (2 × 79.9 g/mol) = 366.0 g/mol
Now, we can calculate the theoretical yield of PbBr2:
theoretical yield = moles of PbBr2 × molar mass of PbBr2
= 0.00919 mol × 366.0 g/mol
≈ 3.36 g
Therefore, the theoretical yield of lead(II) bromide (PbBr2) solid is approximately 3.36 grams.
Determine the mass in grams of 3.06x10^21 atoms of arsenic.
Answers
To determine the mass of the number of atoms, the first step is to convert this number of atoms to moles using Avogadro's number:
\(3.06\times10^{21}atoms\cdot\frac{1molAs}{6.022\times10^{22}atoms}=0.051molAs\)Convert this amount of moles to grams using the molecular weight of Arsenic:
\(0.051molAs\cdot\frac{74.9g}{1molAs}=3.8199g\)It means that the answer is 3.8199g.
A cylinder has the following dimensions: radius = 3.7 cm and height = 6.5 cm. If the mass of the cylinder is 40.67 g, calculate the density in g/cm'. (V = trh) Cylinder
Answers
Answer:
49.8cm
Explanation:
hope it helps i even double checked for you :D
Which of the following are examples of plasmas?
Answers
Answer: plasma can be represented as auroras
Explanation:
A sample of an unknown compound is vaporized at 160 c . The gas produced has a volume of 2330 ml at a pressure of 1.00 atm ,and it weighs 2.10 g
Round answer to 3 significants digits
Answers
The molar mass is 3230.8 g/mol
How to determine the valueFirst, we need to know that the formula for the general gas law is represented as;
PV = nRT
such that the parameters are;
P is the pressureV is the volumen is the number of molesR is the gas constantT is the temperatureSubstitute the values
1 × 2.33 = n × 8.314 × 433.15
Multiply the values, we get;
n = 2.33/ 8.314 × 433.15
Divide the values
n = 6.5 × 10⁻⁴ moles
But, number of moles = mass/molar mass
Molar mass = 2.10/ 6.5 × 10⁻⁴
Molar mass = 3230.8 g/mol
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What do scientists use to answer scientific questions?
A. A scientific guidebook
B. The scientific method
C. A scientific law
D. The atomic theory
Answers
Scientists uses scientific methods and well designed experiments to solve a scientific question. They can use some laws and previous scientific records as an aid.
What is a scientific question ?A scientific question arises from selected topic under study. A scientific question addresses a natural phenomenon, a socially relevant problem or a any personal curiosity.
The scientific question must be testable. The first prediction for the question based on observation and scientific records is called the hypothesis.
The hypothesis must be tested using a well designed scientific experiment based on a scientific method. The methodology should be clearly specify what to collect and how to use them. Hence, option B is correct.
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how to explode stuff
Answers
Phthalonitrile (C₈H₄N₂) is produced by the ammoxidation of o-xylene (C₈H₁₀) according to the following reaction:
C₈H₁₀(l) + O₂(g) + NH₃(g) → C₈H₄N₂(s) + H₂O(l)
How many moles of water would be produced by the complete ammoxidation of 145.0 grams of o-xylene?
Answers
0.6066 moles of water are produced by complete ammoxidation of 145 g of o-xylene.
How are number of moles calculated?Number of moles are calculated by dividing the mass by the molar mass of the substance.In the reaction between o-xylene ,ammonia and oxygen pthalonitrile is produced.
Here, the number of o-xylene is calculated by the above mentioned formula which is 1.365 moles.Then, as per stoichiometry and balanced chemical equation ,
1.365 moles of o-xylene×8 moles of water/1 mole of xylene ×18 g water
=0.6066 moles
Thus,0.6066 moles of water are produced from 145 g of o-xylene.
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