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Oksi-84 [34.3K]
3 years ago
6

Why we add PH10 When we determine the zn ion​

Chemistry
1 answer:
KIM [24]3 years ago
8 0

Answer:

to make it basic from acidic

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A brown dye has a percent composition of 62.41% C, 5.24% H, and 32.36% N by mass with a molar mass of 346.40 g/mol. Determine th
Fiesta28 [93]

The molecular formula : C₁₈H₁₈N₈

<h3>Further explanation</h3>

Given

62.41% C, 5.24% H, and 32.36% N

Required

The molecular formula

Solution

mol ratio

C : 62.41/12.0096 = 5.1967

H : 5.24/1.00784 = 5.1992

N : 32.36/14.0067 = 2.310

Divide by 2.310(smallest)

C : 5.1967/2.31=2.25

H : 5.1992/2.31 = 2.25

N : 2.31/2.31 = 1

Multiplied by 4

C : H : N = 9 : 9 : 4

The empirical formula : C₉H₉N₄

(C₉H₉N₄)n=346.40 g/mol

(12.0096 x 9 + 1.00784 x 9 + 14.0067 x 4)n=346.4

(108.0864+9.07056+56.0268)n=346.4

(173.184)n=346.4

n=2

<em>The molecular formula : C₁₈H₁₈N₈</em>

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