please very soon full explanation parts b,c,d,e urgent Calculate the normality of the following: a. 0.1381 M NaOH b. 0.0521 M H3PO4 c. 0.5781 g acid (eq wt = 187.3) in 250.0 mL of solution d. 0.321 g sodium carbonate in 250.0 mL of solution e. What is the normality of acid if 21.18 mL were needed to titrate 0.1369 g Na2CO3?

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