What kind of problem? (Solutions)

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

Tags

NGSS.HS-PS1-7

How many milliliters of concentrated 18M H₂SO₄ is needed to prepare 250 mL of a 6.0 M solution?

• 83.3 mL
• 0.083 L
• 1500 mL
• 1.5 L

Tags

NGSS.HS-PS1-7

Calculate the concentration in % mass of a solution containing 20.0 g of NaCl dissolved in 250.0 g of H₂O.

• 6.76%

• 7.41%

• 8.00%

• 8.25%

Calculate the molarity of the following solution:  1.0 mole of KCl in 750.0 mL of solution.

• 0.750 M
• 99 M
• 1.3 M
• 2.0 M

What mass of solute is needed to make 75.0 g of a 3.4% solution?

• 2.55 g
• 22 g
• 0.05 g

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

What is the concentration of a solution in parts per million if 0.02 grams of NaCl is dissolved in 1000 grams of water?

• 2 ppm

• 20 ppm

• 200 pm

• 0.2 ppm

If 4.50 g of HCl is reacted with 15.0 g of CaCO₃ according to the following chemical equation,
2HCl + CaCO₃ → CaCl₂ + H2O + CO_{2
Calculate the theoretical yield (in gram) of}
CO₂

• 2.05 g
• 4.12 g
• 3.02 g
• 2.71 g

How many liters would you need to make a 1 M solution if you have 6 mol of Sodium Hydroxide? 

• 2
• 3
• 4
• 6