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AveGali [126]
3 years ago
9

How many moles are in 564 grams of copper

Chemistry
1 answer:
Paraphin [41]3 years ago
7 0
No. of moles =mass given/mass acquired 

no. of moles =564÷64=8.81

therefore no. of moles =8.81m
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Answer:

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Explanation:

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3 years ago
How many times of o are there?
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I would say 4 but you can figure it out or if you have a parent near by to
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What volume of a 0.550 M solution of potassium hydroxide (KOH) can be made with 19.9 g of potassium hydroxide?
Natalija [7]

Answer:

0.645 L

Explanation:

To find the volume, you need to (1) convert grams to moles (using the molar mass) and then (2) calculate the volume (using the molarity ratio). The final answer should have 3 sig figs to match the sig figs of the given values.

(Step 1)

Molar Mass (KOH): 39.098 g/mol + 15.998 g/mol + 1.008 g/mol

Molar Mass (KOH): 56.104 g/mol

19.9 grams KOH              1 mole
--------------------------  x  -----------------------  =  0.355 moles KOH
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(Step 2)

Molarity = moles / volume                            <----- Molarity ratio

0.550 M = 0.355 moles / volume                 <----- Insert values

(0.550 M) x volume = 0.355 moles              <----- Multiply both sides by volume

volume = 0.645 L                                          <----- Divide both sides by 0.550

6 0
1 year ago
Scientists currently use radioactive isotopes in various field. Some radioactive isotopes are used to _____.
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Answer:

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Explanation:

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3 years ago
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Find the empirical formula of the compound ribose, a simple sugar often used as a nutritional supplement. A 14.229 g sample of r
MakcuM [25]

Answer:

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Explanation:

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The empirical formula of the compound ribose is CH2O

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3 years ago
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