2 years ago

Which type of elastomeric material has the highest viscosity?

Chemistry

1 answer:

Lina20 [59]2 years ago

6 0

The elastomeric material which has the highest viscosity is putty

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Helium gas diffuses 4 times as fast as an unknown gas. What is relative molecular mass of the gas

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The relative molecular mass of the gas : 64 g/mol

<h3>Further explanation</h3>

Given

Helium rate = 4x an unknown gas

Required

The relative molecular mass of the gas

Solution

Graham's Law

$\tt \dfrac{r_1}{r_2}=\sqrt{\dfrac{M_2}{M_1} }$

r₁=4 x r₂

r₁ = Helium rate

r₂ = unknown gas rate

M₁= relative molecular mass of Helium = 4 g/mol

M₂ = relative molecular mass of the gas

Input the value :

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Using the fact that at 0.10 M, the absorbance was 0.357; and at 0.20 M, the absorbance was 0.714, the absorptivity (slope) is

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Answer:

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Explanation:

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