AP Chemistry Solution Stoichiometry

What is the molarity of 4 g of NaCl (MM=58.45) in 3,800 mL of solution?

• 0.018 M
• 0.0011 M
• 1.052 M
• 0.062 M

How many mL of 10.8M HCl are required to make 100.0 mL of 3.00M acid?

• 27.8 mL
• 27.78 mL
• 2.8 mL
• 278 mL

Tags

NGSS.HS-PS1-7

What volume of 1.50 M KBr can be made from 15.6 mL of concentrated KBr with a molarity of 9.65 M?

• 150. mL
• 151 mL
• 1.00 L
• 100. mL

Tags

NGSS.HS-PS1-7

What precipitate forms when you mix lead (II) nitrate with sodium chloride?

• sodium nitrate 
• lead (II) chloride 
• sodium lead
• chloride nitrate 

Which is the correct net ionic equation for the reaction of AgNO₃ and CaCl₂?

• Ca²⁺(aq) +  2Cl^- (aq) → CaCl(s)
• Ag⁺(aq)  +  Cl^- (aq) → AgCl(s)
• Ag +  Cl  →  AgCl
• Ag⁺  +  Ca²⁺   →Ag₂Ca (s)

Tags

NGSS.HS-PS1-7

What are the spectator ions in the reaction of sodium chloride with silver nitrate?

• silver and nitrate
• sodium and chloride
• sodium and nitrate
• silver and chloride

In this equation,
CuCl₂ + NaOH  → Cu(OH)₂ + NaCl
Which product is insoluble?

• copper(II) hydroxide
• sodium chloride
• sodium hydroxide
• copper(II) chloride

Which of the following shows the correct net ionic equation for Fe(NO₃)₂ + KOH

• Fe³⁺ + OH^- --> Fe(OH)₃

• Fe²⁺ + OH^- --> Fe(OH)₂

• 2NO₃^- + 2K⁺ --> 2KNO₃

• Fe²⁺ + 2OH^- --> Fe(OH)₂

Tags

NGSS.HS-PS1-7

What is this piece of apparatus called

• Pipette

• Burette

• Janette

• Cuvette

What is an indicator in chemistry?

• A substance that emits light in the presence of an acid or base.

• A substance that remains unchanged in the presence of an acid or base.

• A substance that evaporates quickly in the presence of an acid or base.

• A substance that changes color in the presence of an acid or base.