CHM142 (CHM142)
Miami University Of Ohio
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CHM142 Exam 1 Review with correct Solutions/Miami University
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What is the total concentration of ions (in mol/L) in a solution obtained by dissolving 3.51 g of Cr(NO3)3 in enough water to make 351 mL of solution?
(Molar mass of Cr(NO3)3: 238.01 g/mol) - Ans: 0.168 +/- 1%
What is the concentration of sodium ions (in mol/L) in a solution obtained by mixing 90.5 mL of 0.181 M solution of Na2SO4 and 65.5 mL of 0.147 M solution of Na3PO4?
Assume that volumes are additive. - Ans: 0.395
Which of the following molecules is polar? - Ans: IF5
What is the ...
Exam (elaborations)
CHM142 Exam 1 Review with correct Solutions/Miami University
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What is the total concentration of ions (in mol/L) in a solution obtained by dissolving 3.51 g of Cr(NO3)3 in enough water to make 351 mL of solution? (Molar mass of Cr(NO3)3: 238.01 g/mol) - Ans: 0.168 +/- 1% What is the concentration of sodium ions (in mol/L) in a solution obtained by mixing 90.5 mL of 0.181 M solution of Na2SO4 and 65.5 mL of 0.147 M solution of Na3PO4? Assume that volumes are additive. - Ans: 0.395 Which of the following molecules is polar? - Ans: IF5 What is the ...
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