Answer to Question #98201 in Inorganic Chemistry for Shane Jessica Ballera

Question #98201
1. Calculate the percent composition by mass of nitric acid.

2. What is the percent composition of chromium in K2Cr2O7?

3. Find the following:
Given: Sodium Dihydrogen Phosphate, NaH2PO4

a.) formula weight
b.) percent composition of oxygen
c.) weight in grams of 2.7 moles
1
Expert's answer
2019-11-11T07:48:08-0500

Solution.

1.

2.

3.

a)

b)

c)

Answer:

1.

w(H) = 1.59 %

w(N) = 22.22 %

w(O) = 76.19 %

2.

w(Cr) = 35.37 %

3.

a)

M(NaH2PO4) = 120 g/mol

b)

w(O) = 53.33 %

c)

m (NaH2PO4) = 324 g


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