Answer:
The density of the liquid is 1.153 grams/ml.
Explanation:
You have to use the fomula of density
density = mass/volume ⇒ density = 376 grams/321 ml ⇒
density = 1.153 grams/ml.
The number of potassium atom that are in 0.25 moles potassium carbonate is calculated as follows
by use of Avogadro contant
1 mole= 6.02 x10^23 atoms
what about 0.25 moles,
by close multiplication
{0.250 moles x 6.02 x10^23} / 1 mole = 1.505 x10^23 atoms
Answer:
to understand the human life
Explanation:
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