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Gennadij [26K]
2 years ago
10

What is the molar concentration of

Chemistry
1 answer:
Leto [7]2 years ago
3 0

Answer:

1.42 M

Explanation:

First calculate the amount of moles.

that's done by dividing the mass with the molecular mass so 660g / 310.18 g/mol = 2.13 mol

Then you can calculate the molarity by dividing the moles with the volume so 2.13 mol / 1.5 l = 1.42 M

(without rounding: 1.418531175 M)

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How many grams of K2Cr207 are in 250. mL of 0.500M of K2Cr207:
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<u>Analysing the Question:</u>

We are given a 250 mL solution of 0.5M K₂Cr₂O₇

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3 years ago
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Now we will compare the moles of CO₂ with NaHCO₃ from balance chemical equation.

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                                    1                :               1

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So number of moles of CO₂  produced are 0.571.

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Answer:

195.187016

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