28Thu QZ Science TEST (SPQ4)

What is the molarity of 6.2 moles of NaCl in 2.5 L of water?

(a)  

How many L of water are required to make 7.2 M HCl acid using 4.25 moles of HCl?

(a)  

How many moles of KBr are required to make 2.4 M solution in 8L of solvent?

(a)  

If you have 0.245 L of 4.65 M potassium bromide, KBr. How many moles of potassium bromide are present?

• 0.053 moles

• 1.14 moles

• 19.0 moles

• 4.4 moles

What is the molarity of 14 grams of salt in 5,250 mL of solution?

• 0.046 M

• 0.24 M

• 2.67 M

• 1250 M

What is the molar mass of Ag₂SO₄? Use the proper unit of g/mol.

(a)  

How much water, in L, is needed to make a 2M solution with1066.8g of AlBr₃

(a)  

How many grams of AgNO₃ are needed to prepare 0.125M solution in 250 mL of water? (the molar mass is 169.87g=1 mole)

• 0.03g

• 15g

• 5.3g

• 84.9g

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

• 1.56 M

• 300 M

• 3.13 M

• 31.3 M

What is the molarity of 624g of AgSO₄ in 250 mL of solvent?

• 2 M

• 8 M

• 0.008 M

• 80 M