Practice: Molarity, Dilutions, & Solution Stoichiometry

How many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of 125 mL?

• 1074 mol
• 0.069 mol
• 1.07 mol
• 62.7 mol

Tags

NGSS.HS-PS1-7

How many grams of AgNO₃ are needed to prepare 0.125M solution in 250 mL of water? 

• .03g
• 0.5g
• 5.3g
• 84.9g

Tags

NGSS.HS-PS1-7

What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO₃ to a volume of 250 mL?

• 15.9 M
• 0.636 M
• 0.642 M
• 1.59 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

What is the molarity of a solution made by adding 1.565 moles of PbNO₃ to 500 mL?

• 300. M
• 31.3 M
• 3.13 M
• 1.56 M

Find the molarity of 186.55 g of sucrose, C₁₂H₂₂O₁₁ in 250 mL of water.

• 2.18 M
• 0.746 M
• 1.18 M
• 0.545 M

If you have 34 mL of a 0.5 M NaBr solution, what will the concentration be if 56 mL of water is added to it?

• .188 M

• 3.78 M

• .389 M

• 1.76 M

How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?

• 7.5 mL

• 15 mL

• 1333 mL

• 200 mL

What mass in (g) of AgBr is formed when 35.5 mL of 0.184 M AgNO₃ is treated with (reacts with) an excess of aqueous hydrobromic acid (HBr)? (HINT: HNO₃ is the 2nd product)

• 53.6
• 1.44
• 1.23
• 34.5

Tags

NGSS.HS-PS1-7

How many moles of BaCl₂ are formed in the neutralization of 393 mL of 0.171 M Ba(OH)₂ with aqueous HCl? (Hint: Water is also formed in this reaction)

• 1.15
• 0.0672
• 0.0336
• 2.30

Tags

NGSS.HS-PS1-7