A 1000 gram sample of `NaOH` contains 3 mole of `O` atoms, what is the `%` purity of `NaOH` :

A pure sample of CaCO_(3) contain 100 moles of total atoms. What is the mass of sample-

A pure sample of CaCO_(3) contain 100 moles of total atoms. What is the mass of sample-

Sample A contains one gram molecules of oxygen molecules and sample B contains one mole of oxygen molecules. What is the ratio of the number of molecules in both the sample?

How many moles of NaOH are contained in 27 mL of 0.15 M NaOH ?

2.5 grams of a sample of chalk is strongly heated . If 0.88 grams of carbondioxide is produced, What is the percentage purity of CaCO_(3) in the sample?

50 gm of sample of sodium hydroxide required for complete neutralisation, 1 litre 1 N HCl. What is the percentage purity of NaOH is

A sample of ammonium phosphate (NH_(4))_(3)PO_(4) contains 3.18 mol of H atoms. The number of moles of O atoms in the sample is:

4.0 g of NaOH are contained in one declitre of a solution. Calculate mole fraction of NaOH.