638 Answered Questions for the topic AP chemistry

Ap Chemistry Science Biology Chemistry

04/30/21

A car's airbag needs to be filled with 140 liters of nitrogen gas. Using 2NaN3 → 2Na+3N2 , determine how many grams of sodium azide (NaN3) will be required to produce the 140 liters of nitrogen gas.

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Ap Chemistry Chemistry

04/27/21

200. mL of Ca(OH)2 are required to neutralize 100. mL of 0.10 M Acetic acid. What is the molarity of the Ca(OH)2
200. mL of Ca(OH)2 are required to neutralize 100. mL of 0.10 M Acetic acid. What is the molarity of the Ca(OH)2
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Ap Chemistry Chemistry

04/26/21

Based on Ka values, is OH- stronger or NH3 stronger as bases?

Based on Ka values, is OH- stronger or NH3 stronger as bases?
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Ap Chemistry Chemistry

04/24/21

0.05g of magnesium react in 23.92mL of 2M formic acid (HCOOH, Ka=1.8x10-4). Determine the resulting pH.
0.05g of magnesium react in 23.92mL of 2M formic acid (HCOOH, Ka=1.8x10-4). Determine the resulting pH.
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Ap Chemistry Chemistry

04/24/21

Complete the following reaction:
Complete the following reaction:HCO3-1 +HPO4-2 -->
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Ap Chemistry Chemistry

04/23/21

Given the following reactions, predict whether reactants or products predominate.
The acetate ion, Ac-, is a stronger base than water, which is a stronger base than chloride ion, Cl-.Given the following reactions, predict whether reactants or products predominate.HCl(aq) + H2O ⇒... more
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Ap Chemistry Chemistry

04/20/21

Write a chemical equation for each that illustrates its reaction with water. Explain why they act as bases. Identify the conjugate acid in each of the reactions.
Write a chemical equation for each that illustrates its reaction with water. Explain why they act as bases. Identify the conjugate acid in each of the reactions. cyanide ion, CN–
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Ap Chemistry Chemistry

04/20/21

Write a chemical equation for each that illustrates its reaction with water. What makes these substances acids? Identify the conjugate base in each of the re- actions.
Write a chemical equation for each that illustrates its reaction with water. What makes these substances acids? Identify the conjugate base in each of the re- actions.ammonium ion, NH4+
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Ap Chemistry Chemistry

04/18/21

Identify a substance that would alter the pH of a solution, but that the Arrhenius’ model would fail to identify appropriately. Explain why you selected this substance.
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Ap Chemistry Chemistry Ap Chem

04/17/21

2L of 0.5 M H2SO4 are needed to exactly neutralize 3 liters of NaOH of an unknown concentration.

2L of 0.5 M H2SO4 are needed to exactly neutralize 3 liters of NaOH of an unknown concentration. How do you find the concentration of the NaOH?
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Ap Chemistry Chemistry Chem Ap Chem

04/16/21

Chemistry .
If the total pressure of air is 133 kPa, what is the P O2 if it makes up 22% of the total pressure?
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Ap Chemistry Chemistry

04/16/21

Question about bases
Which pH value indicates the solution that is a base that conducts electricity the poorest?a) 3 b) 5 c) 9 d) 12Explain your answer:
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Ap Chemistry Chemistry

04/16/21

pH Chemistry Question

Which of the following solutions can have a pH of 5?a) a 10-5 M solution of HCl b) a 10-5 M solution of NaOHc) a 10-5 M solution of NaCl d) a 10-5 M solution of CH4
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Ap Chemistry Chemistry

04/16/21

How many moles of KOH are needed to neutralize 1.5 moles of sulfuric acid?
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Ap Chemistry Chemistry

04/16/21

Unit 8 Checkpoint Question 1 - NEW CED Compatible
Vitamin C, Ascorbic acid H2C6H6O6, is a weak acid with a Ka of 7.9 x 10-5A) Write an equation showing the dissociation of one H+ from the acid.B) Identify the acid and conjugate base.C) Build a... more
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Ap Chemistry Chemistry

04/15/21

Barium Acetate: For the salt given below, determine an acid & base that can react to produce the salt and write a balanced neutralization reaction using that acid & base.
For the salt given below, determine an acid & base that can react to produce the salt and write a balanced neutralization reaction using that acid & base.Barium Acetate
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Ap Chemistry Chemistry

04/15/21

Aluminum Sulfate: For the salt given below, determine an acid & base that can react to produce the salt and write a balanced neutralization reaction using that acid & base.
For the salt given below, determine an acid & base that can react to produce the salt and write a balanced neutralization reaction using that acid & base.Aluminum Sulfate
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Ap Chemistry Chemistry

04/15/21

Which of the following solutions has the highest concentration of hydroxide ions? a) NaCl b) HCl c) C6H12O6 d) NaOH
Which of the following solutions has the highest concentration of hydroxide ions?a) NaCl b) HCl c) C6H12O6 d) NaOHExplain your answer, in terms of what kind of substance it is:
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Ap Chemistry Chemistry

04/08/21

A saturated solution of NaOH is formed in a beaker. The change is written as NaOH(s) ⇌ Na+1 (aq) + OH-1 (aq) + 44.51 kJ,
A saturated solution of NaOH is formed in a beaker. The change is written asNaOH(s) ⇌ Na+1 (aq) + OH-1 (aq) + 44.51 kJ,Explain, in terms of common ions, why adding NaCl (aq) to this change will... more
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Ap Chemistry Chemistry

04/08/21

2NO(g) ⇌ N2(g) + O2(g) + heat Stress: Increase pressure a) What is the resulting effect on the number of moles of O2 b) What is the resulting effect on the number of moles of NO
2NO(g) ⇌ N2(g) + O2(g) + heatStress: Increase pressure a) What is the resulting effect on the number of moles of O2b) What is the resulting effect on the number of moles of NO
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Ap Chemistry Chemistry

04/08/21

Consider the reaction CH4(g) + 2 O2(g)⇌CO2(g) + 2 H2O(g). a. Write the expression for the equilibrium constant for this reaction. b. Determine the value of K.
Consider the reaction CH4(g) + 2 O2(g)⇌CO2(g) + 2 H2O(g).a. Write the expression for the equilibrium constant for this reaction.b. Determine the value of K.
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Ap Chemistry Chemistry

04/08/21

Write the equilibrium expression for the following reactions:
Write the equilibrium expression for the following reactions:a. H2 (g)+ I2 (g) ⇌ 2HI(g)b. N2(g) + 3 H2(g)⇌2 NH3(g)c. Ag2CO3(s)⇌2 Ag+(aq) + CO32–(aq)
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Ap Chemistry Chemistry

04/08/21

What word is used to describe a solution at equilibrium?
What word is used to describe a solution at equilibrium?a) saturatedb) unsaturatedc) supersaturatedd) wet
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Ap Chemistry Chemistry

04/08/21

A solution equilibrium exists with the equation AgCl(s)⇌Ag+1(aq) + Cl-1(aq) and NaCl is added to the system. What happens when the NaCl is added?
A solution equilibrium exists with the equation AgCl(s)⇌Ag+1(aq) + Cl-1(aq) and NaCl is added to the system. What happens when the NaCl is added?a) Equilibrium will shift to the right and more AgBr... more
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04/07/21

Need help before April 10th! Please and thank you!
___C6H6+ ___Cl2→ ___C6H5Cl + ___HClWhen 39.0 g of C6H6reacts with an excess of Cl2, the actual yield of C6H5Cl is 42.0 g. What is the percent yield of C6H5Cl?
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