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I am Lyosha [343]
4 years ago
5

What is the mass of 0.46 mol of MgCl2

Chemistry
1 answer:
Ronch [10]4 years ago
8 0

Answer:

43.7

Explanation:

mole is equal mass concentration/ moler mass of MgCl²

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a 5.00 L sample of helium expands to 12.0 L at which point the pressure is measured to be 0.720atm. what was the original pressu
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Answer:

The answer to your question is  Pressure 1 = 1.73 atm

Explanation:

Data

Volume 1 = 5 l

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Volume 2 = 12 l

Pressure 2 = 0.72 atm

Process

To solve this problem use Boyle's law to solve this problem

                 Pressure 1 x Volume 1 = Pressure 2 x Volume 2

-Solve for Pressure 1

                 Pressure 1 = Pressure 2 x Volume 2 / Volume 1

-Substitutiion

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-Simplification

                Pressure 1 = 8.64/5

-Result

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3 years ago
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A balanced chemical equation explicitly provides you with the
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Answer:

A balanced chemical equation explicitly provides you with the

a. conditions under which the reaction occurs.

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d. mole ratios needed to solve a stoichiometry problem.

The correct answer to the question is

d. mole ratios needed to solve a stoichiometry problem.

Explanation:

A chemical reaction is sad to be balanced if it contains the complete list of reactants and products present in their relative proportions. The amounts of reactants and products can be calculated from a balanced chemical reaction equation by applying a process known as stoichiometry

An example of stoichiometry is the formation of two moles of water from one mole of oxygen and two moles of hydrogen

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Explanation:

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