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4 years ago

Which mixture can be classified as a homogeneous mixture?

Chemistry

2 answers:

yawa3891 [41]4 years ago

5 0

Answer:

a slice of cheese

Explanation:

Reika [66]4 years ago

3 0

Anything can be homogenous as long as you can only see the same type of liquid
think about it like this
orange juice with pulp is Hetero
orange juice with no pulp is homo

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Answer:

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A quantity of gas weighing 7.1 g at 741 torr and 44 celius occupies 5.41 L. Find its molar mass.

Aleks04 [339]

1 atmosphere = 760 torr
R = 0.082
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3 years ago

A flask contains 2.0 mol of He gas at 25°C and 1.00 atm. How much He gas, in grams, must be added to increase the pressure to 2.

katrin [286]

Answer:

Mass of He required = 8.0 g

Explanation:

Given,

Initial moles of He = 2.0 mol

Initial pressure = 1.00 atm

final pressure = 2.00 atm

Ideal gas equation,

PV = nRT

As V, R and T are constant

So, $\frac{P_1}{P_2} =\frac{n_1}{n_2}$

$\frac{1.00 atm}{2.00 atm} =\frac{2.0}{n_2}\\n_2=\frac{2.0\times 2.00}{1.00} \\n_2=4.0 mol$

Molar mass of He = 4.00 g/mol

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= 2.0 × 4.0

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