1. Calculate the mass (in grams) of magnesium chloride (MgCl 2 ) that would be needed to prepare 150 mL of a 20% by mass aqueous solution of the salt. The density of the solution is 1.1 g/mL. 2. Calculate the percent by mass of the solution containing 8.60 g of salt in 95.0 g of solution. 3. A solution is prepared by dissolving 20 mL of pure hydrogen peroxide (H 2 O 2 ) in enough water to make 200 mL of solution. What is the concentration of the H 2 O 2 solution?

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A: To find the concentration in molarity (M) of the aqueous solution, we can follow these…

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Q: 4. How many grams of NaCl is needed to prepare a 0.87 M 500 mL solution?

A: Given,  Concentration of NaCl solution = 0.87 M  Volume = 500 ml = 0.5 L

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A: Molarity (M) is a concentration term for a solution. The molarity of a given solution is defined as…

Q: how many miles of MgCl2 are present in 60.0 mL of 0.100 M MgCl2 solution?

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Q: How many moles of CaCl2 are present in 10.0 mL of 0.600 M CaCl2 solution?

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A: Given :- mass of NaCl = 40.5 g                Volume of solution = 1.6 L  To be calculated :-…

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A: Molarity is defined as the number of moles present in 1 liter of solution. It is given as: Molarity…

Q: 2 You will need 25.0 mL of 0.5 M solutions of each reagent. To do this: Calculate the mass of sodium…

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A: We have to use following formulasMoles=Mass of dissolved  Na2SO4Molar mass of  Na2SO4Molarity=Number…

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A: Molarity = (no. Of moles/volume of solution (ml))*1000

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Q: a. 3.40 g of potassium chloride dissolved in 14.4 g of water Percent by mass = % KC1 b. 3.40 g of…

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Q: it is desired to prepare 0.500 L of a 0.192 M of solution of NaCl from 1.00 M stock solution. how…

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Q: 1. A student prepare 25.00 mL of a 0.05000 M copper sulfate solution calculate the mass of CuSO4 x…

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A: As we know , Moles the solute remains same on dilution but volume of the solution increases.…