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goldfiish [28.3K]
3 years ago
9

Convert the given amount as noted.

Chemistry
1 answer:
xxMikexx [17]3 years ago
4 0

Answer: 225.75g

Explanation:

Molar Mass of Fe(OH)2 = 56 + 2(16 + 1) = 56 + 2(17) = 56 + 34 = 90g/mol

1mole(90g) of Fe(OH)2 contained 6.02x10^23 units.

Therefore, Xg of Fe(OH)2 will contain 1.51x10^24 units

Xg of Fe(OH)2 = (90x1.51x10^24)/6.02x10^23 = 225.75g

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Classify each of these statements as always true, at; sometimes true, st; or never true, nt. 11. the rate at which a solute diss
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If you had a 100 mL of a solution of 0.01 M NaF, how many moles would that solution contain?
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Answer:

0.001 mole of NaF.

Explanation:

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

Volume of solution = 100 mL

Molarity = 0.01 M

Mole of NaF =?

Next, we shall convert 100 mL to litre (L). This can be obtained as follow:

1000 mL = 1 L

Therefore,

100 mL = 100 mL × 1 L / 1000 ml

100 mL = 0.1 L

Thus, 100 mL is equivalent to 0.1 L.

Finally, we shall determine the number of mole of NaF present in the solution. This can be obtained as follow:

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0.01 = mole of NaF / 0.1

Cross multiply

Mole of NaF = 0.01 × 0.1

Mole of NaF = 0.001 mole.

Thus, 0.001 mole of NaF is present in 100 mL of the solution.

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