Sodium bicarbonate has a MW of 84. If 210 mg is dissolved in 10 ml, what would be the normality of t

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Sodium bicarbonate has a MW of 84. If 210 mg is dissolved in 10 ml, what would be the normality of the solution?

A. 0.025 N;

B. 0.050 N; 

C. 0.25 N; 

D. 0.50 N; or

E. None of the above
Aug 3rd, 2015

Thank you for the opportunity to help you with your question!

D. 0.5 N


Molarity= 100*0.21/84=0.25 M

Normality for Na2CO3 is twice its molarity .

Please let me know if you need any clarification. I'm always happy to answer your questions.
Aug 3rd, 2015

This is not the answer, the answer is 0.25 N... But the question and answer book does not explain why, could you try to answer the question once more?

Aug 3rd, 2015

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