6,7,8

MULTIL HULI U vull a la volume UI U. JUUL. PQ-4. What solution volume is needed to prepare a 0.110 M solution of MgSO. using 10.3 g of the compound? The molar mass of MgSO, is 120.366 g-moll. (A) 9.41*10’L (B) 0.778 L (C) 1.11 L (D) 93.6L PO-5. What is the molar concentration of a solution made by dissolving 8.56 g of sodium acetate in water and diluting to 750.0 mL? The molar mass of NaC,H,O, is 82.03 g mol”!. (A) 5.30 M (B) 0.139 M (C) 0.104 M (D) 0.0783 M PO-6. What is the molar concentration of the chloride ion in a 3.0 M CaCl solution? (A) 6.0 M (B) 3.0 M (C) 1.5 M (D) 1.0M Conceptual PO-7. What is the concentration of the bromide ion if 25.0 mL of a 0.50 M AB solutie 40.0 mL of a 0.35 M NaBr solution? Assume volumes are additive. (A) 7.9x10molL- (B) 0.41 mol L (C) 0.79 mol-L- (D) 2.1 mol L- What is the final concentration when 28.2 mL of an 11.8 M solution is diluted to 1000 m 2 (A) 0.333 M (B) 2.82 M (C) 3.33 M (D) 4.18 M