Asked by NOTFOUND
25.0ml of an unknown concentration of h2so4 are titrated to an endpoint with 47.0 ml of 2.5 m naoh. what is the molarity of the acid
Answers
Answered by
DrBob222
You need to learn the difference between lower and upper case letters. CO is carbon monoxide, Co is cobalt, co is company. m stands for molality. M stands for molarity = M.
H2SO4 + 2NaOH --> Na2SO4 + 2H2O
mols NaOH = M x L =2.5 M x 0.047 = 0,1175
Convert mols NaOH to mols H2SO4. 0.1175 mols NaOH x (1 mol H2SO4/2 mols NaOH) = 0.1175 x 1/2 = 0.0588.
Then M H2SO4 = mols/L = 0.0588/0.025 = ?
H2SO4 + 2NaOH --> Na2SO4 + 2H2O
mols NaOH = M x L =2.5 M x 0.047 = 0,1175
Convert mols NaOH to mols H2SO4. 0.1175 mols NaOH x (1 mol H2SO4/2 mols NaOH) = 0.1175 x 1/2 = 0.0588.
Then M H2SO4 = mols/L = 0.0588/0.025 = ?
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