Find the percent mass of a 0.6708g sample of an unknown concentration of KHP (204.23g/mol) dissolved...
Find the percent mass of a 0.6708g sample of an unknown concentration of KHP (204.23g/mol) dissolved in 50ml of distilled water. Titrated with 27.04ml NaOH with a concentration of 0.0805M NaOH.
Homework Answers
Volume of NaOH = 27.04 ml
Concentration of NaOH = 0.0805 M
Moles of NaOH = 27.04 ml x 0.0805 M /1000 = 0.00217672 Moles
Moles of KHP present in the sample = 0.00217672 Moles
Mass of KHP present in the sample = 0.00217672 mol x 204.23 g/mol = 0.44455 gm
Percentage Mass of KHP = 0.44455 x 100 / 0.6708 = 66.27 %
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Find the percent mass of a 0.6708g sample of an unknown
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