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30 January, 11:55

Which solution is the most concentrated?2.0 mL of 10 M H2SO4, where H2SO4 has a molar mass of 98 g/mol5.0 mL of 1.0 M PbSO4, where PbSO4 has a molar mass of 303 g/mol2.0 mL of 10.5 M H2O2, where H2O2 has a molar mass of 34 g/mol100 mL of 10 M NaCl, where NaCl has a molar mass of 58 g/mol

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  1. 30 January, 14:24
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    To find the solution with the most concentration, we multiply the given molarity of solution to the given volume and multiply each with the molar mass to get the mass of solute of each solution. For H2SO4, the mass of solute is 1.96 grams; for PbSO4, 1.515 grams; for H2O2, 0,714 grams and for NaCl, 58 grams. Hence the answer is NaCl.
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