6 Answered Questions for the topic Qualitative Analysis

Qualitative Analysis

01/04/17

Qualitative analysis
What volume of steam is produced when 10g of propyne is burnt in excess oxygen at stp?
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Qualitative Analysis

01/03/17

Qualitative analysis
A solution of HNO3 contained 0.67g in 100cm3. 31cm3 of this solution neutralised 25cm3 of a solution Na2CO3. Calculate the concentration of the trioxocarbonate (iv) solution 
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Qualitative Analysis

01/03/17

Qualitative analysis
Calculate the mass of pure NaCl that will yield enough hydrogen chloride gas to neutralise 25 cm3 of 0.5M Potassium trioxocarbonate (iv) solution 
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Qualitative Analysis

01/03/17

Qualitative analysis
12.5g of ZnCO3 were heated very strongly to a constant mass and the residue treated with excess HCl. Calculate the mass of ZnCl2 that would be obtained 
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Qualitative Analysis

01/03/17

Qualitative analysis
39.8g of a mixture of KCl and KClO3, were heated on a constant mass.  If the residue weighed 28.9g, what was the percentage mass of KCl in the mixture.     Note.  KCl is not decomposed on heating 
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Qualitative Analysis

01/02/17

Qualitative analysis
A metal X with relative atomic mass 56 forms an oxide with formula X2O3. How many grams of the metal will combine with 10g of oxygen? (O=16)
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