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Alborosie
2 years ago
14

How many moles are in 2.0 grams of FeO

Chemistry
2 answers:
timurjin [86]2 years ago
7 0

Answer: 0.027837938656318

Explanation: Because 1 grams FeO is equal to 0.013918969328159 mole.

Natali [406]2 years ago
4 0

Answer:

.027798 moles

Explanation:

Molar mass of Iron (II) Oxide.

Molar mass of iron is 55.847

Molar mass of Oxygen is 15.9994

Add the two.

55.947 + 15.9994 = 71.9464

2 (grams) / 71.9464 (molar mass) = .027798 moles

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To what volume should you dilute 55 mL of 12 M stock HNO3 solution to obtain a 0.145 HNO3 solution?
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Answer:

4552 mL

Explanation:

From the question given above, the following data were obtained:

Volume of stock solution (V₁) = 55 mL

Molarity of stock solution (M₁) = 12 M

Molarity of diluted solution (M₂) = 0.145 M

Volume of diluted solution (V₂) =?

The volume of the diluted solution can be obtained by using the dilution formula as illustrated below:

M₁V₁ = M₂V₂

12 × 55 = 0.145 × V₂

660 = 0.145 × V₂

Divide both side by 0.145

V₂ = 660 / 0.145

V₂ ≈ 4552 mL

Thus, the volume of the diluted solution is 4552 mL

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Which of these does not cause a change in the reaction rate?
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