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Secure https://session.masteringchemistry.com/myct/itemview?assignmentproblemIDw7938o758 Chem 101 Spring 2017 ch 131619 HW Calculating Percent Concentration previous l 1 of 24 I next Calculating Percent Concentration Part A The percent concentration of a solution is a ratio of the Calculate the mass percent of a solution that isprepared by adding 67.8gof NaoH to 360 g of H2O. amounts of dissolved solute and solution, expressed as a percentage. The percent concentration of a solution can be written generally as Express your answer numerically. amount of solute concentration x 100% amount solution IVO AE Depending on the situation, a percent concentration might be calculated for mass/mass, volumevolume, or (m/m) Hints My Answers Give Up Review Part Part B Calculate the mass/volume percent of a Naci solution in which 137 g ofNaClis dissolved in enough water to give a total volume of 2.36 L Express your answer numerically (m/v) Submit Hints My Answers Give Up Review Part Provide Feedback Continue https://session masteringchemistry.com/myct/itemview?assignmentProblemlDm79380758&offset-next;

Explanation / Answer

Percent concentration of solution ( mass %)= mass of solute ( NaOH)/ (mass of solution = 100*67.8/(360+67.8)= 15.85%

Mass/Volume = 100*(mass of sodium chloride/ volume of solution)=100*137/2.36*1000 = 5.805%

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