What would happen if a student added 5% aqueous NaHCO_3 instead of 6 M HCI in the hydrolysis step? What, if anything, could be done to correct this error? Could the product still be isolated? Explain your answer.

Answer:

Potential Energy is stored energy or energy of position (gravitational). The object isn't moving. For example, a ball being held is potential energy because the object isn't moving but it has the potential of turning into kinetic energy.

Kinetic Energy is the energy of motion. For example, running. You are moving, and there is clear action and activity

Energy stored in an object due to its position is Potiential energy . Energy that is moving object has due to its motion is Kinetic energy .

Answer:

when you multpily or divide powers of 10 you just add or subratact respectivley

Explanation:

(5.93 x 10 ^ 3) (2.3 x 10^ -2) = (5.93 * 2.3 ) x 10 ^ 3 +(-2)

                                             = 13.639 x 10 ^ 3-2

                                             = 13 . 639 x 10

                                              1.3639 x 10^2

the bond order for one carbon-carbon bond in the benzene molecule, taking σ and π bonding into consideration will be 1.5.

In the benzene molecule, there are 6 carbon atoms arranged in a hexagonal ring, with alternating single and double bonds. Each carbon atom is covalently bonded to two other carbon atoms, with one single bond and one double bond.

To calculate the bond order for one carbon-carbon bond in benzene, we need to take into account both the σ (sigma) and π (pi) bonding. The σ bond is formed by the overlap of two atomic orbitals along the internuclear axis, while the π bond is formed by the overlap of two atomic orbitals perpendicular to the internuclear axis.

In the case of benzene, each carbon-carbon bond has one σ bond and one π bond. The total bond order for each bond can be calculated as the sum of the bond orders for the σ and π bonds. The bond order for a σ bond is 1, while the bond order for a π bond is 0.5.

Therefore, the bond order for one carbon-carbon bond in the benzene molecule is:

Bond order = (σ bond order) + (π bond order) = 1 + 0.5 = 1.5

So the bond order for one carbon-carbon bond in the benzene molecule is 1.5.

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Answer:

C) that result in radiant energy

Explanation:

got it right on edge 2022

Answer:

c

Explanation:

Answer: antimony

Explanation:

Answer:

sketching a diagram of a new medical device (b)

Explanation:

its on edge technical design not d i got that one wrong

Answer:

the answer is b

Explanation: i took the test edge 2021

Answer:

Explanation:Erosion is a physical change

a. Decreasing alpha from 0.05 to 0.01 makes the significance level more stringent. You will be less likely to reject the null hypothesis, even when it's false. This increases the probability of a Type II error, thus potentially reducing the power of the test. The power curve will shift to the left.

b. If the sample size is reduced from 90 to 50, the effect on the power curve is that it will also shift towards the left.

The power curve is a graph that shows the probability of rejecting the null hypothesis as a function of the true value of the mean.

In the given scenarios of this study, Reducing the significance level and reducing the sample size will shift the power curve to the left, indicating a decrease in the statistical power of the test.

The power of a statistical test is the probability that it correctly rejects the null hypothesis when the alternative hypothesis is true.

a) Reducing alpha from 0.05 to 0.01 means that we are more stringent in our assessment of whether the new treatment is effective.

This will result in a decrease in the power of the test, meaning that it is less likely that we will be able to detect a difference between the new treatment and the previous treatment.

b) If the sample size is reduced from 90 to 50, the effect on the power curve is that it will also shift towards the left.

This is because a smaller sample size decreases the power of the test. A larger sample size provides more information and thus makes it more likely to correctly reject the null hypothesis when the alternative hypothesis is true.

Therefore, by reducing the sample size, you are decreasing the likelihood of detecting a true effect if one exists, thus reducing the power of the test.

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The specific heat capacity of water is 4.18 J/(g K) and the given amount of water is more than 100 grams. We need to calculate the energy absorbed by the water to reach boiling point when 5.39 × 10^5 J of heat is supplied.

The amount of water used is not provided in the question, therefore, let's first calculate the energy required to raise the temperature of 100g of water from room temperature (25°C) to its boiling point (100°C) using the formula,Q = m × c × ΔTwhere,Q = energy absorbedm = mass of waterc = specific heat capacity of waterΔT = change in temperature of water= 100 - 25 = 75°C (since the water is heated until it just begins to boil)Thus,Q = \(100 g × 4.18 J/(g K) × 75°C= 31350 J= 31.35 kJ\) of energy is required to heat 100g of water from 25°C to 100°C.

Now, let's determine the mass of water using the amount of heat energy supplied:Q =\(m × c × ΔT, where Q = 5.39 × 10^5 Jm = Q / (c × ΔT)= 5.39 × 10^5 J / (4.18 J/(g K) × 75°C)= 204.55 g\)(approx.)Therefore, more than 100 g of water is required to absorb 5.39 × 10^5 J of heat to reach its boiling point.

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The placement of a plastic coating (a, b, c, or d below) that could be used to prevent galvanic corrosion would depend on the type of plastic coating being used and the specifics of the joined copper and iron pieces that are exposed to salt water conditions.

Generally, a plastic coating should be applied to prevent any direct contact between the copper and iron pieces. Placement “a” and “b” could both be used, as they would create a barrier between the two pieces, while placement “c” and “d” would not be as effective because there would still be direct contact between the two pieces.

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Answer:

D

Explanation:

I took the test

Answer:

D took the test

Explanation:

When these will be water or you dee the section in water, as it is an equilibrium equation, the equilibrium win move back ward and you are going to see majorly pink eolocer.

There is a state of equilibrium there. Le Chatelier's principle states that if we change the concentration of any reactant or product, equilibrium will shift in that direction, negating the effect. Water is also a product, as we have seen for II. If the solvent been water, the product concentration would have grown and the equilibrium would have shifted backward, culminating in the creation of I.

As it is an equilibrium equation, when these are in water or you dee the section in water, the equilibrium will go backward and you will primarily see pink eolocer.

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Answer:

Im pretty sure, its Kinetic Energy increases. So C. Have a nice day!

Explanation:

"When the temperature of an object increases, the average kinetic energy of its particles increases. When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increases."

Answer:

C

Explanation:

It's the amount of products you get compared to all the reactants you use. It's kind of like economy in that it's profit, and the higher the atom economy the more products/profit you have.

Answer:

C.) The measure of how much of the reactants end up as products in a chemical reaction.

Explanation:

I got it right on founders edtell.

1.4 mol CO

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

8.5 × 10²³ molecules CO

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Step 4: Check

Follow sig fig rules and round. We are given 2 sig figs.

1.41149 mol CO ≈ 1.4 mol CO

1. The name of the fertilizer I found at my local gardening store is Miracle-Gro All Purpose Plant Food.

2. Form (liquid or solid): Soluble powder.

3. Grade: 24-8-16

4. Weight of container or bag: 1.5 lbs. You may see the table on the attachment.

Miracle-Gro All Purpose Plant Food is a popular brand of fertilizer that can be found in most gardening stores and nurseries.  The form of Miracle-Gro All Purpose Plant Food is a soluble powder that can be dissolved in water.

The grade of this fertilizer is 24-8-16, which means it contains 24% nitrogen, 8% phosphate, and 16% potash (also known as potassium). The weight of the container or bag of Miracle-Gro All Purpose Plant Food is 1.5 lbs, which is the amount of fertilizer that is contained in the package.

The table shows the actual amounts of nitrogen, phosphate, potash, oxygen, and zinc (sometimes abbreviated as Za) in the fertilizer, based on the given weight of the fertilizer. This information is important for determining how much fertilizer to apply to plants and for maintaining proper plant nutrition. Nitrogen is an important component for promoting leaf growth, while phosphorus is important for root development and flowering. Potassium helps to promote overall plant health and resistance to disease.

Oxygen is not a component of fertilizer but is listed here because it is sometimes used as a filler in fertilizers to increase the volume. Zinc is also not a major component of most fertilizers but may be present in small amounts to help promote plant growth.

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Phenolphthalein indicator turns blue in basic solutions. The given statement is false because it is commonly used to determine the pH of a solution

Phenolphthalein indicator is a chemical compound commonly used to determine the pH of a solution. It is colorless in acidic solutions (pH below 7) and turns pink or magenta in basic or alkaline solutions (pH above 7). It does not turn blue in basic solutions. Phenolphthalein's color change occurs over a narrow pH range, typically between pH 8.2 and 10.0, making it an effective indicator for titrations involving weak acids and strong bases.

There are other indicators, such as bromothymol blue or litmus paper, that change color at different pH levels, and they can be blue under specific pH conditions. However, phenolphthalein remains one of the most widely used indicators for acid-base titrations due to its distinct color change and suitability for various applications. In summary, phenolphthalein indicator turns blue in basic solutions. The given statement is false because it is commonly used to determine the pH of a solution

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The rock containing 3 mg 40K. The half-life of 40K is 1.3 billion years. is approximately 3.0448172338 billion years old.

Half-life is a term used in nuclear physics to describe the time it takes for half of the atoms in a sample of a radioactive substance to decay. It is the amount of time required for the quantity of a substance to decrease by half its initial value.

Each radioactive substance has a unique half-life, which can range from fractions of a second to billions of years. The concept of half-life is important in many fields, including nuclear physics, geology, chemistry, and medicine, as it helps scientists understand how long it takes for radioactive materials to decay and how much radiation they emit over time.

The ratio of the remaining 40K to the initial amount of 40K is given by:

(3 mg) / (12 mg) = 0.25

Taking the natural logarithm of both sides of the equation and using the formula for the half-life, we get:

ln(0.25) = -0.693147 * t / (1.3 billion years)

Solving for t, we get:

t = -(1.3 billion years) * ln(0.25) / 0.693147

t ≈ 3.0448172338 billion years

Therefore, the rock is approximately 3.0448172338 billion years old.

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Walt's mistake is described as: "Only dead plants form natural gas. What is natural gas Natural gas is a fossil fuel that is generated deep beneath the earth's surface. It's a colorless, odorless gas that can be utilized as a fuel for vehicles, heating, cooking, and electricity generation.

It is primarily made up of methane, a hydrocarbon chemical compound. When natural gas is produced, it is accompanied by smaller quantities of hydrocarbon liquids and non-hydrocarbon gases.What is the best description of Walt's mistake The best description of Walt's mistake is that he believed "Only dead plants form natural gas. This assertion is incorrect since natural gas is produced by both land plants and animals.

The dead organic matter is then converted into natural gas through a process known as kerogen formation. Hence, the statement "Only dead plants form natural gas" is incorrect, and it is important to make sure your facts are right before making any assertions. the natural gas is not solely formed from dead plants. Land plants and animals can also produce natural gas. The statement "Natural gas only requires extreme pressure to form" is also incorrect because natural gas is created over a long period of time, usually millions of years.

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The concentrations for the second, third, and fourth dilutions would be 0.3M, 0.03M, and 0.003M, respectively.

In a serial dilution, a concentrated solution is successively diluted to obtain solutions with lower concentrations. In this case, starting with a 30M sucrose solution, a series of four 1/10 dilutions are performed. The first dilution involves making 100 mL of the 1/10 dilution. To answer question 20, the calculation for the first dilution needs to be shown. For question 21, a diagram of the serial dilution with labeled volumes and concentrations of the stock and dilution beakers needs to be drawn. Finally, for question 22, the concentration calculations for each dilution step need to be provided.

To calculate the first dilution, we need to determine the concentration of the resulting solution. Since it is a 1/10 dilution, the concentration would be 1/10 times the original concentration. Therefore, the concentration of the first dilution would be 30M / 10 = 3M.

For question 21, a diagram needs to be drawn to illustrate the serial dilution process. The diagram should include the stock solution with a volume of 30M, the first dilution beaker with a volume of 100 mL and a concentration of 3M, and labels indicating the volumes and concentrations at each step of the dilution process.

For question 22, the concentration calculations for each dilution step need to be provided. Starting with the first dilution at 3M, subsequent dilutions would be 1/10 of the previous concentration. Therefore, the concentrations for the second, third, and fourth dilutions would be 0.3M, 0.03M, and 0.003M, respectively.

Overall, these calculations and the diagram represent the process and concentrations involved in the serial dilution of the 30M sucrose solution.


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S (s) + O₂ (g) → SO₂ (aq) represents this chemical reaction

In stating a chemical equation it can be done in the form of a word or a chemical formula

A word equation will include the words of the reactants, products, form of the compound (liquid, gas, solid), the total concentration/quantity of the reactants and products which can be expressed in mass, moles, or volume

The questions statement above shows that sulfur powder (S) and oxygen gas (O₂) are reactants (located on the left of the reaction equation), and sulfur dioxide (SO₂) is the product of the reaction (stated in the problem there is the word "to form") which is located on the right

So the complete reaction

S (s) + O₂ (g) → SO₂ (aq)

Answer:

The correct answer is A

Explanation:

Answer:

7

Explanation:

Heptane is a hydrocarbon. There are 7 carbon atoms

Answer:

yea lol

Explanation:

duh

Because the end result of an acid-base reaction frequently is just a neutralized mixture of a soluble molecule, commonly known as a salt, this reaction is sometimes referred to as a(n) reaction.

substance created when an acid and a base react. The positively ion (cation) of a basic and the anion (weak acid) of an acid make up a salt. The contact between an acidic solution is called a neutralized reaction. Compared to regular table salt, potassium salts possess up to 70percentage points less sodium.

Table salt, also known as sodium chloride (NaCl), is made up of an equal amount of sodium cations and salt anions that are structured in a repeating muti structure, alternating in all three dimensions.

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A common introductory laboratory experiment to illustrate the various chemical properties of copper involves a series of reactions. One such reaction is the reaction between copper and concentrated nitric acid. This reaction results in the formation of copper(II) nitrate, nitrogen dioxide gas, and water. The balanced chemical equation for this reaction is: Cu(s) + 4HNO3(aq) -> Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l)

Another reaction involves the reaction between copper and hydrochloric acid. This reaction produces copper(II) chloride and hydrogen gas. The balanced chemical equation for this reaction is: Cu(s) + 2HCl(aq) -> CuCl2(aq) + H2(g)

These reactions demonstrate the ability of copper to react with different acids, forming different compounds. By observing the changes in color, gas production, and other properties during these reactions, students can gain a better understanding of the chemical properties of copper.

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Answer:

Earthquakes are more intense the faster the planet's crust slams together, which explains why the shaking causes so much damage in some of the most populated areas around mountain chains. ... One reason for this connection is that when two plates come together quickly, the area over which an earthquake occurs is larger.Explanation:

с. сarbon is most likely the chemical formula for graphite.

The chemical formulation of graphite is C, Molecular weight: 12.01. Nanotubes, diamond and graphite are allotropes of carbon, and the chemical formulation may be expressed by "C".

Graphite is manufactured from pure carbon. Carbon atoms are able to form bonds that create a number of one-of-a-kind structures. Diamond and graphite are of the maximum bureaucracy (allotropes) of carbon.

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The concentration of H₃PO₄ in the vessel 810 seconds later is 6.07 x 10⁻² M.

Given: The rate constant of the reaction is 7.88 x 10⁻⁴ s⁻¹. The half-life of the reaction is 881.4 s. The initial concentration of H₃PO₄ is 0.170 M. We need to find the concentration of H₃PO₄ after 810 seconds using first-order reaction rate expression and equation.
First-order reaction rate expression:
 k = (2.303/t) log [a]₀/[a]t
where,k = rate constant,
t = time taken for the reaction to complete
log = logarithm base 10
[a]₀ = initial concentration of reactant
[a]t = concentration of reactant after time t
At t = 0, the initial concentration of H₃PO₄ is 0.170 M and at t = 810 seconds, a  concentration of H₃PO₄ is required. Initial concentration, [a]₀ = 0.170 MAt t = 0 s, [a]t = 0.0850 M (half of the initial concentration, as given in the problem)
Thus, using the equation of a first-order reaction, k = (2.303/t) log [a]₀/[a]t7.88 x 10⁻⁴ s⁻¹ = (2.303/881.4) log (0.170/0.0850)log (0.170/0.0850) = (7.88 x 10⁻⁴ s⁻¹) (881.4/2.303)log (0.170/0.0850) = 0.32797Concentration of H₃PO₄ after 810 seconds = [a]t[a]t = [a]₀ e^-kt
From the above equation,[a]t = (0.170 M) e^-((7.88 x 10⁻⁴ s⁻¹) (810 s))[a]t = 0.0607 M or 6.07 x 10⁻² M
Therefore, the concentration of H₃PO₄ in the vessel 810 seconds later is 6.07 x 10⁻² M.

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Answer:

25g

Explanation: