Answer:
Salt.
Explanation:
NaCl = natrium chloride, otherwise known as table salt.
1 mol ----------- 6.02 x 10²³ atoms Na
( mols Na) ------ 9.8 x 10²³ atoms Na
( mols Na ) = ( 9.8 x 10²³ ) x 1 / 6.02 x 10²³
( mols Na) = 9.8 x 10²³ / 6.02 x 10²³
= 1.6 mols Na
hope this helps!
Answer: 6.56g
Explanation:
No of moles = mass given/molar mass
Molar mass of ch4
C is carbon which is 12
H is hydrogen which is 1
Molar mass= 12+4(1)
Molar mass= 16g/moles
No of moles given is 0.41moles
No of moles = mass given/molar mass
Mass given = molar mass × no of moles
Mass given = 16×0.41
Mass= 6.56g
Answer:
12.5 g of Li are needed in order toproduce 0.60 moles of Li₃N
Explanation:
The reaction is:
6Li(s) + N₂(g) → 2Li₃N(s)
If nitrogen is in excess, the lithium is the limiting reactant.
Ratio is 2:6
2 moles of nitride were produced by 6 moles of Li
Then, 0.6 moles of nitride were produced by (0.6 .6)/ 2 = 1.8 moles of Li
Let's convert the moles to mass → 1.8 mol . 6.94 g/ 1mol = 12.5 g of Li