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Soloha48 [4]
3 years ago
11

Monosodium glutamate (MSG), a flavor enhancer, has been blamed for "Chinese restaurant syndrome," the symptoms of which are head

aches and chest pains. MSG has the following composition by mass: 35.51 percent C, 4.77 percent H, 37.85 percent O, 8.29 percent N, and 13.60 percent Na. What is its molecular formula if its molar mass is about 169 g?
Chemistry
1 answer:
MA_775_DIABLO [31]3 years ago
3 0

Answer:

The molecular formula of mono sodium glutamate is C_5H_8O_4N_1Na_1

Explanation:

Molar mass of sodium glutamate,M = 169 g/mol

let the molecular formula be C_aH_bO_cN_dNa_e

Percentage of carbon in the M.S.G. =35.52 %

35.51\%=\frac{a\times 12 g/mol}{169 g/mol}

a = 5

Percentage of Hydrogen in the M.S.G. = 4.77 %

4.77\%=\frac{b\times 1 g/mol}{169 g/mol}

b = 8

Percentage of oxygen in the M.S.G. =37.85 %

8.29\%=\frac{c\times 16 g/mol}{169 g/mol}

c = 3.99 ≈ 4

Percentage of nitrogen in the M.S.G. = 8.29 %

4.77\%=\frac{d\times 14 g/mol}{169 g/mol}

d = 1

Percentage of sodium in the M.S.G. =13.60 %

13.60\%=\frac{c\times 23g/mol}{169 g/mol}

e = 0.99 ≈ 1

The molecular formula be :C_aH_bO_cN_dNa_e=C_5H_8O_4N_1Na_1

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