No. of moles of water in 488.6 gms of `BaCl_(2).2H_(2)O` are (molecular weight of `BaCl_(2).2H_(2)O = 244.33)`

Number of moles of water in 488 gm of BaCl_(2).2H_(2)O are - (Ba = 137)

The number of mole of water in 488 g BaCl_2 ,2H_2O are :

Calculate the number of moles of water in 610 g BaCl_(2).2H_(2)O

(a) 2 Calculate the number of moles of water in 366 g BaCl_(2).2H_(2)O . (b) Calculate the value of X ( in terms of mole) if X=9.4 g "Phenol" +6.02xx10^(22) molecules phenol +0.2 "mole" phenol.

A mixture of salts was treated to determine the barium constent. A 0.230 g sample was dissolved and treated with excess potassium chromate. The precipitate of BaCrO_(4) was dissolved in dil HCl to convert BaCrO_(4) to Cr_(2)O_(7)^(2-) anion. The solution treated with excess sodium iodide and trilodide produced was titrated with 21 mL of 0.095 M sodium thiosulphate. Calculate the % of BaCl_(2). 2H_(2)O in the sample. [Given Molar mass of BaCl_(2.2H2O)=244]

Calculate the enthalpy of hydration of BaCl_(2) to BaCl_(2).2H_(2)O (s) given that the enthalpy of solution of BaCl_(2) (s) is - 20.6 kJ mol^(-1) and that of BaCl_(2).2H_(2)O(s) is + 8.8 KJ mol^(-1) .

2BaCrO_(4)darr+4HCl to 2BaCl_(2)+H_(2)Cr_(2)+H_(2)O

2BaCrO_(4)darr+4HCl to 2BaCl_(2)+H_(2)Cr_(2)+H_(2)O

The molecular mass of water (H_2O) is 18. How many moles of molecules are there in 180g of H_2O ?