Multiple Choice
A sample of magnesium oxide was dissolved in 50.0 mL of 0.183 M hydrochloric acid,and the excess acid was titrated to a phenolphthalein end-point by 13.4 mL of 0.105 M sodium hydroxide.What was the mass of the magnesium oxide sample?
A) 312 mg
B) 184 mg
C) 156 mg
D) 104 mg
E) 77.8 mg
Correct Answer:
Verified
Correct Answer:
Verified
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