The molar mass of HCl is 36.5g use the fact that 1 amu = 1.6605x 10-24g power g to calculate Avogradro’s number.
hydrogen nucleus =
1 gram/mol = 1 amu * AV molecules/mol * 1.6605*10^-24 grams/amu
so
AV = 1 /(1.6605*10^-24
= .6022 * 10^24
= 6.022*10^23
To calculate Avogadro's number using the given molar mass of HCl and the fact that 1 amu is equal to 1.6605x10^-24g, you can follow these steps:
1. Write down the molar mass of HCl, which is given as 36.5g.
2. Convert the molar mass of HCl into atomic mass units (amu). To convert from grams to amu, we use the fact that 1 amu is equal to 1.6605x10^-24g. Therefore, we divide the molar mass of HCl by this conversion factor:
Molar mass (in amu) = (36.5g) / (1.6605x10^-24g)
Molar mass (in amu) ≈ 2.200x10^23 amu
3. Next, recall that Avogadro's number is defined as the number of entities (atoms, molecules, etc.) in one mole of a substance. In other words, Avogadro's number is the number of particles per mole.
Avogadro's number ≈ Molar mass (in amu)
Therefore,
Avogadro's number ≈ 2.200x10^23
Hence, by using the given molar mass of HCl and the conversion factor from grams to amu, we find that Avogadro's number is approximately 2.200x10^23.