Please check for me.

1. For the reaction CH3COOH--->CH3COO + H+, which of the following statements is true?

CH3COOH is a Brønsted-Lowry acid.<---

CH3COO is an Arrhenius base.

CH3COO is a Lewis base.

CH3COOH is a Brønsted-Lowry base.

2. Of the metals Pb, Mg, Au, and Na, which will not spontaneously donate electrons to copper in solution?

Pb

Mg

Au<---

Na

3. The pictured compound has which of the following bonds?
Picture of 4 carbons and 10 hydrogens.

C=C and C-H

C-C and C-H <---

C-C, C-H, and C-O

C=C and C-C

4. Which of the following functional groups defines a ketone?

NH

=O<----

PO4

Na

5. Which of the following is a strong base?
potassium hydroxide<----

ethyl alcohol

vinegar

ammonia

6. How many moles of a gas sample are in a 10.0 L container at 373 K and 203 kPa? The gas constant is 8.31 L-kPa/mol-K.

0.33 moles

0.65 moles<----

1.11 moles

3.05 moles

7. You dissolve 0.37 g of potassium chloride (KCl) in 500 mL of water. What is the molarity of the solution? Use a periodic table.
0.01 M<----

0.05 M

0.1 M

0.5 M

8. How much heat do you need to raise the temperature of 300 g of ethanol from 0°C to 20°C?

2.44 kJ<---

7.3 kJ

14.6 kJ

29.5 kJ

9. If you have 10 grams of a substance that decays with a half-life of 14 days, then how much will you have after 42 days?

3.13 g

6.25 g

1.25 g<----

2.50 g

10. Which of the following reactions occurs at the anode in a voltaic cell?

K+ (aq) + e- K (s)

Mg (s) Mg2+ + 2e- <----

Cd2+ (aq) + Zn (s) Zn2+ (aq) + Cd (s)

Cu2+ (aq) + 2e- Cu (s)

Number six I did not calculate, the others are correct.

#6 is correct also.

yea. u are correct.

8) H=m*c*(t2-t1)

H=300*2.44*(20-0)
H=300*2.44*20 = 14640j
H=14.6kj

To check the answers, we need to go through each question and statement one by one and determine if it is true or false.

1. For the reaction CH3COOH ---> CH3COO + H+, the statement "CH3COOH is a Brønsted-Lowry acid" is true. This is because CH3COOH donates a proton (H+) during the reaction, which is the characteristic of an acid in the Brønsted-Lowry theory.

2. Of the metals Pb, Mg, Au, and Na, the statement "Au will not spontaneously donate electrons to copper in solution" is true. This is because Au is below copper in the electrochemical series, meaning it has a lower tendency to lose electrons compared to copper.

3. The pictured compound of 4 carbons and 10 hydrogens has the bonds C-C and C-H. The statement "C-C and C-H" is true. This is because the compound consists of carbon-carbon (C-C) single bonds and carbon-hydrogen (C-H) bonds.

4. The functional group that defines a ketone is the carbonyl group (=O). Therefore, the statement "=O defines a ketone" is true.

5. Potassium hydroxide is a strong base. Therefore, the statement "potassium hydroxide is a strong base" is true.

6. To calculate the number of moles in a gas sample, we use the ideal gas law equation PV = nRT. Rearranging the equation, n = PV/RT. Plugging in the given values, we have n = (203 kPa)(10.0 L) / (8.31 L-kPa/mol-K)(373 K) = 0.65 moles. Therefore, the statement "0.65 moles" is true.

7. To calculate the molarity of a solution, we use the formula Molarity (M) = moles of solute / volume of solution (in liters). First, we need to convert the given mass of potassium chloride (KCl) into moles. Using the molar mass of KCl (39.10 g/mol for K, 35.45 g/mol for Cl), we have moles of KCl = 0.37 g / (39.10 g/mol + 35.45 g/mol) = 0.00485 moles. Next, we convert the volume of solution from milliliters to liters (500 mL = 0.5 L). Plugging in the values, we have Molarity = 0.00485 moles / 0.5 L = 0.0097 M ≈ 0.01 M. Therefore, the statement "0.01 M" is true.

8. To calculate the heat required to raise the temperature of a substance, we use the formula Q = mcΔT, where Q is the heat, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature. For ethanol, the specific heat capacity is approximately 2.44 J/g°C. Plugging in the given values, we have Q = (300 g)(2.44 J/g°C)(20°C - 0°C) = 14,640 J ≈ 14.6 kJ. Therefore, the statement "14.6 kJ" is false. The correct answer is "2.44 kJ".

9. The decay of a substance with a half-life can be calculated using the formula N = N0 * (1/2)^(t/t1/2), where N is the final amount, N0 is the initial amount, t is the time, and t1/2 is the half-life. Plugging in the given values, we have N = 10 g * (1/2)^(42 days / 14 days) = 1.25 g. Therefore, the statement "1.25 g" is true.

10. In a voltaic cell, the anode is the electrode where oxidation occurs. The statement "Mg (s) Mg2+ + 2e- occurs at the anode in a voltaic cell" is true because Mg is oxidized, losing 2 electrons to form Mg2+.