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KATRIN_1 [288]
3 years ago
8

What mass of sodium hydroxide is needed to make 12.5 L of a 0.150M solution?

Chemistry
1 answer:
raketka [301]3 years ago
5 0

Answer:

75g

Explanation:

n=Cmxv

=0,15x12,5

=1,875 mol

m=nxM

=1,875x40

=75g

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The tiara worn by Kate Middleton for her wedding to Prince William of England contains 888 diamonds and belongs to the British m
allsm [11]

Answer:

The number of atoms in the gemstones of that tiara is 8.9125\times 10^{24} atoms.

Explanation:

Number of diamonds ion tiara = 888

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888\times 0.200 g=177.600 g

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Atomic mass of  carbon atom = 12 g/mol

Moles of 77.600 g of carbon =\frac{177.600 g}{12 g/mol}=14.800 mol

Number of atoms of carbon 14.800 moles:

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The number of atoms in the gemstones of that tiara is 8.9125\times 10^{24} atoms.

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max2010maxim [7]

Answer:

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So maximum pressure required is 5.11 atmosphere. Beyond this pressure , solid CO2 will liquify.

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