n = m / M
m = n × M
Nitrogen (N2) - a gas is always with an index 2 if we don't have shown how many molecules are there
m (N2) = 4,5 mol × (2×14.007 g/mol)
m (N2) = 4,5 mol × 28.014 g/mol = 126.063g
if you don't solve with the decimals in class just replace 14.007 with 14
also if you haven't learned abour gasses aways having index 2 then:
m (N2) = 4,5 mol × 14.007 g/mol = 63.0315g
The mass of 4.5 moles of sodium fluoride is 189g
Answer is: there is 1,368·10²⁵ atoms of carbon.
N(C₃H₈) = 4,56·10²⁴.
From molecular formula: in one molecule of propane there is three atoms of carbon:
N(C) = 3 · 4,56·10²⁴.
N(C) = 1,368·10²⁵.
Answer:
The mass of one mole of water molecule = 18 ×N
A amu
Explanation: The mass of one mole of water molecule = Mass of one molecule ×N A Also mass of one mole of water is its molar mass in grams. So the mass of one mole of water is 18 g
Answer:
Ribosomes preform biological synthesis. (mRNA Translation). They also link amino acids together to form polypeptide chain.
