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lara [203]
3 years ago
9

If 0.35 moles of kcl was dissolved in enough water to make 0.2 L of solution, what is molarity?

Chemistry
1 answer:
Mars2501 [29]3 years ago
8 0

Answer:

1.75M

Explanation:

molarity = number of moles of solute/ number of L of solution =

=0.35 mol/0.2L = 1.75 mol/L = 1.75 M

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2 years ago
An initial mixture of nitrogen gas and hydrogen gas is reacted in a rigid container at a certain temperature by the reaction At
anygoal [31]

Answer: [N2]₀ = 10M and [H2]₀ = 11M

Explanation: To calculate the initial concentration, you would have to set up an ICE table, which is an organized way of tracking known quantities or the ones you want to find. ICE stands for:

I is initial amount;

C is change in concentration;

E is for equilibrium concentration;

For the mixture,

       N2                       3H2                2NH3

I      [N2]₀                     [H2]₀                  0

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E     [N2]₀ - x =8      [H2]₀ - 3x =5       2x =4

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x=2M

With x=2, find the concentrations:

[N2]₀ - x = 8

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[H2]₀ - 3x = 5

[H2]₀ = 11M

The initial concentrations of nitrogen gas [N2] is 10.0 M and of hydrogen gas [H2] is 11.0 M.

8 0
3 years ago
Read 2 more answers
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Answer:

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Platinum is used as a catalyst.

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Explanation:

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Answer:

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2 years ago
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