Solutions and concentrations

What is the molarity of 2.5 mol of NaOH in 12.0 L of solution?

• 0.21 M

• 30 M

• 4.8 M

• 20.8 M

What is the molality of a solution containing 1.3 mol in 13.4 kg of solution?

• 9.7 m
• 17.42 m
• 0.097 m

What is the molarity of 122.5 g of AlCl₃ in 1.0 L of solution?

• 1.225 M
• 0.92 M
• 0.1225 M

What is the molality of 1.2 g of HCl in 750 g of solution?

• 0.04 m

• 0.00004 m

• 0.0016 m

What is the concentration, in percent by mass, of 0.62 g of solute in 45.0 g of solution?

• 0.014 %
• 1.4 %
• 0.13%

What is the concentration, in percent by volume, of 15.3 mL of solute in 2.65 L of solution?

• 0.58%
• 0.0058%
• 5.8%

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

• 2.55 g

• 22 g

• 0.05 g

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 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

Moles per kilograms is the unit used for measuring

• enthalpy
• effervescence
• molarity
• molality