How many moles of gas are present in 57.20 L of argon at a pressure of 1 atm and a temperature of 0°C?
1 answer:
You might be interested in
Answer:
8.60 * atoms N2
Explanation:
We want to convert grams to moles and then moles to atoms.
First, we convert grams of nitrogen gas (which is N2) to moles. To do so, we need the molar mass of N2, which is just 14.01 * 2 = 28.02 g.
40 g N2 * = 1.43 mol N2
Now, we need to convert moles to atoms by using Avogadro's number, which is :
1.43 mol N2 * = 8.60 *
atoms N2
Thus, the answer is 8.60 * atoms N2.
Answer:
0.39 moles
Explanation:
To find how many moles are in 50.0 g of CaC₂O₄ you divide the grams of the sample by the molar mass of the compound;
=0.39 mol
The grams cancel out and you are left with moles!
I hope this help ^-^