Chemistry Solutions

What is the molarity of 4 g of NaCl in 3,800 mL of solution?

• 0.018 M

• 0.0011 M

• 1.052 M

• 0.062 M

How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl?

• 0.625 g NaCl

• 625 g NaCl

• 36.56 g NaCl

• 0.04 mol NaCl

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

Tags

NGSS.HS-PS1-7

Which sweet tea would you expect to taste the sweetest?

• 1M

• 3M

• 5 M

• 2.5M

Tags

NGSS.HS-PS1-5

Kool-Aid - flavoring, coloring, sugar, and water. Identify the solvent.

• water

• powder

• sugar

• powder and sugar

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

Molarity is ...

• grams of solute/deciliters of solvent.

• grams of solute/liters of solution.

• moles of solute/liters of solution.

• moles of solute/milliliters of solvent.

How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl (MM = 58.45)?

• 0.625 g NaCl
• 625 g NaCl
• 36.5 g NaCl
• 0.04 mol NaCl

If I have 340 mL of a 0.5 M NaBr solution, what will the concentration be if I add 560 mL more water to it?

• .188 M

• 3.78 M

• .389 M

• 1.76 M

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

• 27.8 mL

• .278 mL

• 2.8 mL

• 278 mL