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## 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 H_{2}SO_{4} produced to Na_{2}SO_{4} used is 1:1, so 0.0056 moles Na_{2}SO_{4} x 1mole H_{2}SO_{4}/1mole Na_{2}SO_{4} = **0.056 moles H**_{2}SO_{4}.

## 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.