. How many moles of ammonia gas, NH3, are required to fill a volume of 50 liters at STP?
2 answers:
Answer : The number of moles of ammonia gas is, 2.232 moles
Explanation : Given,
Volume of ammonia gas = 50 L
As we know that at STP,
1 mole of gas contains 22.4 L volume of gas.
As, 22.4 L volume of ammonia gas present in 1 mole of ammonia gas
So, 50 L volume of ammonia gas present in mole of ammonia gas
Therefore, the number of moles of ammonia gas is, 2.232 moles
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Answer:
6.2moles of Gold
Explanation:
To solve this problem, we are going to use the mole concept approach.
Given that;
Number of atoms of gold is 3.73 x 10²⁴ atoms
Now;
In 1 mole of any substance, we have 6.02 x 10²³ atoms;
So;
If there 6.02 x 10²³ atoms in 1 mole of any substance;
3.73 x 10²⁴ atoms will contain = 6.2moles of Gold