Chemistry

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What is the concentration of a solution of lithium carbonate containing 0.01 mol in 750 mL of solution

What volume of 0.01 mol L-1 Li2CO3 solution would contain 0.035 mol lithium carbonate?
Give your answer as 2 sig fig (this is technically not correct), followed by a space then the units.

How many moles of lithium carbonate are contained in 400 mL of a lithium carbonate solution with a concentration of 0.015 mol L-1? Give your answer as two sig. figures, followed by a space and the units

What is the concentration, in mol L-1, of a solution containing 1.2 g of lithium carbonate in 100 mL solution?
Give your answer as 2 sig fig, followed by a space and the units (remember the units given in a previous question).

What is the concentration, in g/L, of a solution containing 0.65 mol HNO3 in 150 mL solution?
Give your answer rounded to nearest whole number, followed by a space and the units.

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