2.96g of CuNO3 dissolves in water to make 0.320 M solution. What is the volume o

Question

2.96g of CuNO3 dissolves in water to make 0.320 M solution. What is the volume of the solution (in mL)? I have tried this problem three different times and it keeps telling me that what I am doing is wrong. I dont know why I keep getting this wrong. Ive found the molar mass of copper(1) nitrate (which is 125.56g/mol) and I have converted the given mass into moles based on the molar mass that I've found which is 0.023574387 mol of Copper(1) Nitrate. Then I divided the given molarity (0.320M solution) by the amount of moles that the given mass is of Copper(1) Nitrate and converted that liter amount into milliliters and got 13,574mL solution. What am I doing wrong?

Explanation / Answer

You have made a mistake in calculating volume. Molarity = moles / volume SO Volume = moles / molarity Here You have done molarity / moles which is incorrect SO Volume = moles / molarity = 0.023574387 / 0.32 = 0.07367 L = 73.67 ml

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