Use the following chemical equation to answer the question.

If 20 moles of fuel are combusted in the above equation, how many moles of 02 are consumed?

Answer:

4.03 moles

Explanation:

We know that the molar mass of Carbon is 12.011, thus we can solve for moles by dividing the grams given by the molar mass.

48.4 g / 12.011 g = 4.03 moles

The mass percentage of C in morphine would be 4.21%.

The mass percentage of a composition in a compound is the mass of the composition relative to the mass of the entire compound. This can be mathematically expressed as:

Mass percentage = mass of component/mass of substance x 100%

In this case, we are looking for the mass percentage of C in \(C_{17}H_{19}NO_3\).

Molar weight of C = 12 g/mol

Molar mass of  \(C_{17}H_{19}NO_3\) = (12x17) + (1x19) + (14x1) + (16x3)

                                             = 285 g/mol

Mass percentage of C = 12/285

                                     = 4.21% to 2 decimal places.

In other words, the mass percentage of C in morphine is 4.21%.

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You start with 285mL of 0.35M solution of NaCl. Sufficient amount of water is added so that the volume increases to 550mL. What will be concentration of the new solution.

Initial volume = V₁ = 285 mL

Initial concentration = M₁ = 0.35 M

Final volume = V₂ = 550 mL

Final concentation = M₂ = ?

We are only adding water to our solution, so we are diluting the solution. The number of moles of NaCl will remain constant. Since the amount of the solute is constant, in dilution exercises we can use this formula:

V₁ * M₁ = V₂ * M₂

If we solve it for the final concentration we get:

M₂ = V₁ * M₁ / V₂

If we replace by the given values we obtain:

M₂ = 285 mL * 0.35 M / 550 mL

M₂= 0.18 M

More water is better but not always because access to water or sunlight is harmful to plants.

Water is an important part not only for plants to run the ecosystem it is always important but in a fixed amount not in a large quantity as access to anything is harmful t the environment as access to water can also damage the ecosystem.

Water is said to be life for plants but more water leads them not to grow in a manageable way like access to water in the soil will not allow the soil to hold the plant for growing plants will float on sol and the root will not be able to grow.

Therefore, water is essential always but in fixed quantity not in the large amount in access.

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Answer:

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Explanation:

Alkyne chemistry refers to the branch of chemistry that deals with triple bonds between carbon atoms. Due to the presence of pi-electrons that are not tightly bound, alkynes undergo addition reactions.

Alkynes have a triple bond, which makes it possible to add halogens, water, and other substances to them through an addition reaction. A series of steps are used to create addition goods. The development of addition products is caused by the stability of vinylic cations. Asymmetric alkynes must adhere to Markovnikov's rule in order to conduct addition reaction. Below are a few addition reactions of alkynes that are explained: Alkenes are created when alkynes react with dihydrogen in the presence of catalysts like Pt/Pd/Ni. Alkanes are created when the produced alkenes further react with dihydrogen.

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The modern cell theory explains the relation between the cells and the living things.

The Scientific knowledge is durable yet subject to change. Science is a social activity. The scientific knowledge includes the generalized collection of the laws and the hypothesis. scientific knowledge is used to generate the logical data and the knowledge. scientific knowledge is used to investigate the data to explain the phenomena. scientific knowledge involves the experiments and the data collection. the scientific knowledge is very important because it helps us to understand ourselves and the world.

Thus, The modern cell theory explains the relation between the cells and the living things.

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The order of reaction is defined as the power to which the concentration of the reactants are raised in the rate equation of the reaction.

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To increase the gravitational force between the balloon and the golf ball, It should be filled with lead pieces. Option D

A substance's density, which measures its mass in relation to its volume, determines how much gravitational force it produces.

Lead bits are one of the suggested materials, and they are the one that would most likely boost the gravitational force. The density of lead is much higher than that of the other listed materials.

The high density of lead will result in an increase in the gravitational pull between the balloon and the golf ball if Jamie fills the balloon with lead bits.

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Answer:

A

Explanation:

I took intro to biotechnology

The growth of the new plant depicts the asexual reproduction characteristic. The characteristic that describes the growth of the new plant in Stephan's mother cutting a twig from a rose bush and planting it in the soil is asexual reproduction.

Asexual reproduction is the mode of reproduction by which organisms generate offspring that are identical to the parent's without the fusion of gametes. Asexual reproduction is a type of reproduction in which the offspring is produced from a single parent.

The offspring created are clones of the parent plant, meaning they are identical to the parent.The new plant in Stephan’s mother cutting a twig from a rose bush and planting it in the soil depicts the process of asexual reproduction, which is the ability of a plant to reproduce without seeds. In asexual reproduction, plants can reproduce vegetatively by cloning themselves using their roots, bulbs, or stems.

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The amount of copper in moles in the 27.5 g pure copper sheet is approximately 0.433 moles.

To calculate the amount of copper in moles in a pure copper sheet, we need to use the molar mass of copper and the given mass of the sheet.

The molar mass of copper (Cu) is approximately 63.55 g/mol. This value represents the mass of one mole of copper atoms.

Given that the mass of the pure copper sheet is 27.5 g, we can calculate the number of moles using the following formula:

moles = mass / molar mass

Substituting the values:

moles = 27.5 g / 63.55 g/mol

moles ≈ 0.433 mol

Therefore, the amount of copper in moles in the 27.5 g pure copper sheet is approximately 0.433 moles.

To arrive at this result, we divided the given mass of the sheet (27.5 g) by the molar mass of copper (63.55 g/mol). This calculation allows us to convert the mass of the sheet into the corresponding number of moles of copper.

The result tells us that the 27.5 g pure copper sheet contains approximately 0.433 moles of copper atoms. This conversion to moles is useful in various chemical calculations and allows for easier comparison and analysis of quantities on a molecular scale.

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umm so what's the question ???

Answer: The concentration of NaOH solution is 0.194 M

Explanation:

To calculate the number of moles, we use the equation:

\(\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}\)

Given mass of KHP = 0.294 g

Molar mass of KHP = 204.22 g/mol

Putting values in above equation, we get:

\(\text{Moles of KHP}=\frac{0.294g}{204.22g/mol}=0.00144mol\)

The chemical reaction follows the equation:

\(KHC_8H_4O_4(aq.)+NaOH\rightarrow KNaC_8H_4O_4(aq.)+H_2O(l)\)

By Stoichiometry of the reaction:

1 mole of KHP reacts with 1 mole of NaOH.

So, 0.00144 moles of KHP will react with = 0.0144 of KOH.

To calculate the molarity of NaOH, we use the equation:

\(\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}\)

We are given:

Moles of KOH = 0.00144 moles

Volume of solution = 7.42ml  = 0.00742L      (Conversion factor:  1L = 1000 mL)

Putting values in above equation, we get:

\(Molarity=\frac{0.00144mol}{0.00742L}=0.194M\)

Hence, the molarity of NaOH solution is 0.194 M

The concentration of the NaOH solution used in complete titration has been 0.194 M.

The reaction of KHP with NaOH has been the neutralization reaction that results in the formation of salt and water.

The concentration of KHP solution has been:

Molarity = \(\rm \dfrac{weight}{Molecular\;weight}\;\times\;\dfrac{1000}{Volume\;(ml)}\)

Molarity of KHP = \(\rm \dfrac{0.294}{204.2}\;\times\;\dfrac{1000}{250}\)

Molarity of KHP = 0.0057 M

The concentration of the KHP solution has been 0.0057 M.

For the neutralization reaction in complete titration:

Molarity of acid \(\times\) Volume of acid = Molarity of base \(\times\) Volume of base

Substituting the values from the question:

0.0057 M \(\times\) 250 ml = Molarity of NaOH \(\times\) 7.42 ml

1.439 = Molarity of NaOH \(\times\) 7.42 ml

Molarity of NaOH = 0.194 M.

The concentration of the NaOH solution used in complete titration has been 0.194 M.

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The statement "All organic compounds contain the element carbon, but not all compounds containing the element 'carbon' are organic" can be justified based on the definition and characteristics of organic compounds.

Organic compounds are compounds primarily composed of carbon and hydrogen atoms, often with other elements like oxygen, nitrogen, sulfur, and phosphorus. These compounds are typically associated with living organisms and are known for their unique properties and behavior, including the ability to form complex structures, exhibit covalent bonding, and undergo organic reactions.

On the other hand, there are compounds that contain carbon but are not classified as organic. One notable example is carbon dioxide (\(CO_{2}\)), which is a simple inorganic compound composed of carbon and oxygen. Carbon dioxide does not possess the characteristic properties of organic compounds, such as the ability to form long chains or undergo organic reactions.

Additionally, there are inorganic compounds like carbonates (such as calcium carbonate) and carbides (such as calcium carbide) that contain carbon but are not considered organic. These compounds have distinct chemical and physical properties different from those of organic compounds.

In summary, while all organic compounds contain carbon, not all compounds containing carbon are organic. The classification of a compound as organic or inorganic depends on its overall molecular structure, bonding, and characteristic properties.

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Answer:

complexation

Explanation:

KSCN + FeCl 3 → K + + [FeSCN] 2+ + 3 Cl. This is a complexation reaction: [FeSCN] 2+ is the formed complex.

Answer:

Leaches aluminum from the soil.

Explanation:

Answer:

large object to small objects

Answer:

The answer is C or warm objects to cool objects

Explanation:

Heat is the thermal energy flows from one substance to another when the substances differ in temperature. When you drink hot chocolate the heat from the liquid will flow to your mouth.

Answer:

The answer you are looking for would be A

Explanation:

I took the test

Answer:

A.) It is the currently accepted atomic model.

Explanation:

edge 2021

Answer: conclusion

Explanation:

It say reviews your original question and your hypothesis

Answer:

conclusion!

Explanation:

For marshmallows, Graham Cracker and Chocolate Pieces:

1. To calculate the molar mass of S₂MmOr₃, we need to add up the individual molar masses of each element in the compound, as follows:

S: 1 × 32.06 g/mol = 32.06 g/mol

Mm: 2 × 12.01 g/mol + 4 × 1.01 g/mol + 3 × 15.99 g/mol = 88.15 g/mol

Or: 3 × 16.00 g/mol = 48.00 g/mol

Molar mass of S₂MmOr₃ = (2 × 32.06 g/mol) + (88.15 g/mol) + (3 × 48.00 g/mol) = 296.37 g/mol

2. The balanced chemical equation for the formation of S₂MmOr₃ is:

2S + 2Mm + 3Or → S₂MmOr₃

3. To find the number of moles of marshmallows in one bag, we need to divide the mass of marshmallows by the molar mass of marshmallows:

Number of moles of marshmallows = 454 g ÷ 88.15 g/mol ≈ 5.15 mol

4. Since the ratio of graham crackers to marshmallows to chocolate pieces in the S'more compound is 2:2:3, we need an equal number of moles of graham crackers and marshmallows, and 1.5 times the number of moles of chocolate pieces. Therefore:

Number of moles of graham crackers = 2 × 5.15 mol = 10.3 mol

Number of moles of chocolate pieces = 3 × 1.5 × 5.15 mol = 23.18 mol

The maximum number of S'mores using 5.15 mol of each ingredient, which corresponds to 5.15 mol ÷ 2 mol per box = 2.575 boxes of graham crackers and 23.18 mol ÷ (3.3 g/mol) = 76.42 chocolate bars (rounded up to the nearest whole number).

5. To use up all the marshmallows, we need 5.15 mol of graham crackers, which corresponds to (5.15 mol × 7.00 g/mol) ÷ 254 g per box = 0.142 boxes of graham crackers. Since we can't buy a fraction of a box, we need to round up to the nearest whole box, which gives us:

Number of boxes of graham crackers = 1 box

Therefore, we need one box of graham crackers to use up all the marshmallows.

6. To use up all the marshmallows, we need 5.15 mol of chocolate pieces, which corresponds to (5.15 mol × 3.30 g/mol) ÷ 49.5 g per chocolate bar = 0.344 chocolate bars. Since we can't buy a fraction of a chocolate bar, we need to round up to the nearest whole chocolate bar, which gives:

Number of chocolate bars = 1 chocolate bar

Therefore, we need one chocolate bar to use up all the marshmallows.

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The statement that should describe the temperature of the region at the equator is that it can be associated with perpendicular solar radiation.

The Equator line at zero (0) latitude is an imaginary line that divides the Earth's planet into two equal parts composed of South latitudes and North latitudes.

Temperatures at low latitudes, i.e., near the Equator line, are warmer because this region receives perpendicular solar rays all the year, thereby the energy of solar radiation is distributed to the Earth's surface.

In conclusion, the statement that should describe the temperature of the region at the equator is that it can be associated with perpendicular solar radiation.

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Answer: The given chemical properties are of most concern when determining the severity of possible chemical leaks: flammability, reactivity to air/water(corrosion) and high toxicity.

Explanation:

Scientists must broadly focus on the given three factors to determine the severity of the chemical leak-

- Flammabilty: It is defined as the property of a chemical substance that allows it to burn at a definite pace. If a chemical is highly flammable it needs to be kept safely away from flammable or fire related substance to avoid any unwanted hazards.In case of leak of a flammable chemical immediate fire protection arrangements must be made.

-Reactivity to air/water(corrosion): A chemical can cause severe effects if it reacts with air/ water and makes the environment toxic/difficult to breathe.  Also a corrosive chemical can damage machineries and other important equipments as well as human lives. Proper care as well as isolation must be provided to such chemicals in the case of leaks

-High toxicity:Toxic chemicals pollute the environment and damage animal as well as plant lives due to their toxic nature which gets incorporated in the atmosphere,water ,soil etc.

If HCl was added to the evaporating dish to react with NaHCO₃ than needed, the actual yield of NaCl be affected is  0.0014g

Evaporation process by which an element or compound transitions from its liquid state to its gaseous state below the temperature at which it boils

Here given data is  HCl was added to the evaporating dish to react with NaHCO₃

We have to find actual yield of NaCl be affected = ?

0.0823 mol NaCl/56.44 g = 0.0014g

Then the actual yeild is 0.0014g

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Answer: 8

Explanation:

Answer: 5,266

Explanation:

5,266

Answer:

1.79

Explanation: