The percentage composition of sodium phosphate as determined by analysis is 42.1% sodium, 18.9% phosphorus and 39% oxygen.

Find the empirical formula of the compound (work to up to two decimal places). [Na = 23,P = 31,O = 16]

Na₃PO₄

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Na₂PO₄

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Na₂PO₃

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Na₆PO₃

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Na₃PO₂

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Solution

The correct option is A
Na₃PO₄

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Q. The percentage composition of sodium phosphate as determined by analysis is 42.1% sodium, 18.9 % phosphorus and 39 % oxygen. Find the empirical formula of the compound[Na = 23, P = 31, O = 16].

The percentage composition of sodium phosphate, as determined by analysis is: 42.1% of sodium, 18.9% of phosphorus and 39% of oxygen. Find the empirical formula of the compound (work to two decimal places). [H = 1, N = 14, O = 16, Na = 23, P = 31, Cl = 35.5, Pt = 195]

The percentage compostion of sodium phosphate as determined by analysis is 42.1% sodium, 18.9% phosphorus and 39% oxygen. Find the empirical formula of the compound.

Q. A compound contains

43.58 %

. Phosphorus & remaining oxygen. Find empirical formula:

(A M = P = 31, O = 16)

Q. A substance on analysis gave the following percentage composition:

N a = 43.4 %, C = 11.3 %

and

O = 45.3 %

. Calculate the empirical weight (Atomic weight in amu of

N a = 23, C = 12, O = 16

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The percentage composition of sodium phosphate as determined by analysis is 42.1% sodium, 18.9% phosphorus and 39% oxygen. Find the empirical formula of the compound (work to up to two decimal places). [Na = 23,P = 31,O = 16]

The correct option is A Na3PO4

The percentage composition of sodium phosphate as determined by analysis is 42.1% sodium, 18.9% phosphorus and 39% oxygen.

Find the empirical formula of the compound (work to up to two decimal places). [Na = 23,P = 31,O = 16]

The correct option is A
Na₃PO₄