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g100num [7]
3 years ago
8

How many grams are in 0.5 mols of Zn

Chemistry
1 answer:
anastassius [24]3 years ago
7 0

Answer:

32.69g

Explanation:

m=MM × n

m= 65.38×0.5

m=32.69g

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What is the mass of 0.25 moles of water? O 0.25 g 4.5 g 18 g 72g
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Answer:

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Explanation:

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you ned to make an aqeous solution of .139M aluminum nitrate for an experiment in a lab, using 300. ml volumetric flask. how muc
larisa [96]

Answer:

8.88 grams of aluminum nitrate should be weighted.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to use the definition of molarity to calculate the moles of aluminum nitrate as follows:

M=\frac{n}{V}\\\\n=M*V\\\\n=0.139mol/L*0.300L=0.0417mol

Now, since the molar mass of aluminum nitrate is 212.996 g/mol, we obtain the following mass:

m=0.0417mol*\frac{212.996 g}{1mol} \\\\m=8.88g

Therefore, 8.88 grams of aluminum nitrate should be weighted.

Regards!

5 0
3 years ago
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