How many moles are in 23.5 g of Na2SO4?
1 mole of Na2SO4 contains 7 moles of atoms. Molecular weight of Na2SO4 is (2*23)+(1*32)+(4*16) = 46+32+64 = 142 grams. 142 grams of Na2SO4 contains 7 moles of atoms. So, total number of atoms in 23.5 grams of Na2SO4 is 1.16*6.023*(10^23)=6.99*(10^23) atoms.
How do you calculate grams to moles?
Divide the mass of the substance in grams by its molecular weight. This will give you the number of moles of that substance that are in the specified mass. For 12 g of water, (25 g)/(18.015 g/mol) = 0.666 moles.
How many moles are there in 458 of Na2SO4?
There are 3 moles in 458 grams of Na2SO4.
How many molecules are there in 450g of Na2SO4?
Answer: 16.02×1023 molec, Na₂SO4 = 119×1024 | 142.05g Na25041 Imol Naz Soy lec Na.
How many Na ions are present in 2 moles of Na2SO4?
(A)- 2 moles of Na2SO4. (B)- 12.044×1023 sodium ions. (C)- 1 mole of Na2SO4. (D)- 6.022×1023 Sulphur atoms.
How many moles of Na2SO4 make from 4 moles of h2so4?
The ratio of H2SO4 produced to Na2SO4 used is 1:1, so 0.0056 moles Na2SO4 x 1mole H2SO4/1mole Na2SO4 = 0.056 moles H2SO4.
How many molecules are there in 237 grams of cci4?
1.32*10²⁶ molecules are there in 237 grams of ccl4.
How many molecules are there in 122 grams of Cu NO3 2?
There are 3.913× 10^23 molecules in 122 grams of Cu(NO3)2.