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10 months ago

How many molecules are in 20.2 moles of CO₂?

Chemistry

1 answer:

mrs_skeptik [129]10 months ago

8 0

Answer:

1.22 x 10²⁵ molecules CO₂

Explanation:

To find the amount of molecules, you need to multiply the number of moles by Avogadro's Number. Avogadro's Number is a ratio which represents the amount of molecules per every 1 mole. It is important to arrange this ratio in a way that allows for the cancellation of units (since you are going from moles to molecules, moles should be in the denominator). The final answer should have 3 sig figs like the given value.

Avogadro's Number:

6.022 x 10²³ molecules = 1 mole

20.2 moles CO₂ 6.022 x 10²³ molecules
--------------------------- x -------------------------------------- = 1.22 x 10²⁵ molecules
1 mole

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Explanation:

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2 years ago

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3 years ago

A compound is found to have a molar mass of 598 g/mol. if 35.8 mg of the compound is dissolved in enough water to make 175 ml of

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The computation for molarity is:
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2 years ago

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Answer:

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Explanation:

Step 1: Write the balanced equation

2 C₅₇H₁₁₀O₆ + 163 O₂ ⇒ 114 CO₂ + 110 H₂O

Step 2: Convert 1.6 lb of C₅₇H₁₁₀O₆ to g

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Step 3: Calculate the moles corresponding to 7.3 × 10² g of C₅₇H₁₁₀O₆

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Step 4: Calculate the moles of water produced from 0.82 moles of C₅₇H₁₁₀O₆

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Step 5: Calculate the mass corresponding to 45 moles of H₂O

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