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3 years ago

In the space, show a correct numerical setup for calculating the number of moles of CO2 present in 11 grams of CO2

Chemistry

1 answer:

makvit [3.9K]3 years ago

4 0

Ans: Moles of CO2 = 0.25 moles

Given:

Mass of CO2 = 11 g

To determine

Moles of CO2

Explanation:

Moles = mass/molecular mass

Molecular mass of CO2 = 44 g/mol

Moles of CO2 = 11 g/44 g.mol-1 = 0.25 moles

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A 2.2 M solution is made by with 0.45 moles of a solute. What is the final volume of this solution?

Savatey [412]

Answer: The final volume of this solution is 0.204 L.

Explanation:

Given: Molarity of solution = 2.2 M

Moles of solute = 0.45 mol

Molarity is the number of moles of solute present divided by volume in liters.

$Molarity = \frac{no. of moles}{Volume (in L)}$

Substitute the values into above formula as follows.

$Molarity = \frac{no. of moles}{Volume (in L)}\\2.2 M = \frac{0.45}{Volume}\\Volume = 0.204 L$

Thus, we can conclude that the final volume of this solution is 0.204 L.

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3 years ago

Can someone help me with 10 and 11 plz. I will mark them Brainliest

hjlf

Answer:

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3 years ago