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# 040molesnacl 0300lx 100lsolution 012molesnacl 3

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Unformatted text preview: 12 0.480 moles NaCl x 58.5 g NaCl 1 mole NaCl = 28.1 g NaCl d. How many moles of salt are contained in 300.0 mL of a 0.40 M NaCl solution? 0.40 moles NaCl 0.300 L x 1.00 L solution = 0.12 moles NaCl 3. A chemist dissolves 98.4 g of FeSO4 in enough water to make 2.000 L of solution. What is the molarity of the solution? 0.324 M 4. Battery acid is generally 3.0 M H2SO4. Roughly how many grams of H2SO4 are in 400.0 mL of this solution? 117.6 g = 120 g 5. If 25.00 mL HCl acid with a concentration of 0.1234 M is neutralized by 23.45 mL of Ca(OH)2, what is the concentration of the base? CaCl2 (aq) + 2 H2O (l) Ca(OH)2 (aq) + 2 HCl (aq) → [Ca(OH)2] = 0.02500 L x 0.1234 mol x 1 mol Ca(OH)2 = 0.06577 M 1 L 2 mol HCl 0.02345 L 6. A 25.0 mL sample of vinegar (CH3COOH) is titrated and found to react with 94.7 mL of 0.200 M NaOH. What is the molarity of the acetic acid solution? NaOH (aq) + CH3COOH (aq) → CH3COONa (aq) + H2O (l)...
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