Calculate the number of grams of sodium in 2.00 g of each sodium-containing food additive.

-NaCl
-Na3PO4
-NaC7H5O2
-Na2C6H6O7

A = 0.7871g

B = 0.8417g

C = 0.3192g

D = 0.3897g

Explanation:

Hello,

The number of grams of sodium (Na) in 2g of NaCl is

Molar mass of NaCl = 58.44g/mol

Molar mass of Na = 23g

23g of Na = 58.44g of NaCl

x g of Na = 2g of NaCl

x = (2 × 23) / 58.44

x = 0.7871g

Therefore, 0.7871g of Na is present in 2g of NaCl

2.

2g of Na₃PO₄

Molar mass of Na₃PO₄ = 163.94g/mol

Molar mass of Na = 23g

(3 × 23)g of Na = 163.94 g of Na₃PO₄

x g of Na = 2g of Na₃PO₄

x = (2 × 69) / 163.94

x = 0.8417g

0.8417g of Na is present in 2g of Na₃PO₄

3.

2g of NaC₇H₅O₂

Molar mass of NaC₇H₅O₂ = 144.103g/mol

Molar mass of Na = 23g

23g of Na = 144.103g of NaC₇H₅O₂

x g of Na = 2g of NaC₇H₅O₂

x = (2 × 23) / 144.103

x = 0.3192g

0.3192g of Na is present in 2g of NaC₇H₅O₂

4. 2g of Na₂C₆H₆O₇

Molar mass of Na₂C₆H₆O₇ = 236.08g/mol

Molar mass of Na = 23g

(2 × 23)g of Na = 236.08g of Na₂C₆H₆O₇

x g = 2g of Na₂C₆H₆O₇

x = (46 × 2) / 236.08

x = 0.3897g

0.3897g is present in 2g of Na₂C₆H₆O₇

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