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I am having trouble finding the formulas to answer the following questions.

I am having trouble finding the formulas to answer the following questions. Any help would be greatly appreciated. Thank you for your help.

3.     Calcium carbonate (a weak base) reacts with nitric acid (a strong acid) quantitatively in the following reaction to form calcium nitrate, water and carbon dioxide:

CaCO3 + 2HNO3 slide arrow Ca (NO3)2 + H2O + C02

How many kg of carbon dioxide (CO2) are formed per kg of CaCO3 reacted? Presume that there is an excess of HNO3 available.

 

 

4.     Metallic sodium reacts vigorously with liquid bromine in the following reaction:

2Na + Br2 slide arrow 2NaBr

1 kg of Na is brought into contact with 3 kg of liquid bromine. Presuming that the reaction is quantitative and proceeds to completion, determine the limiting reagent and the quantity of NaBr formed. Determine the amount of excess reagent remaining after the reaction is complete.

 

 

5.     The combustion of gasoline (C8H18) with excess oxygen produces carbon dioxide and water.

·        a balanced chemical reaction for the combustion of gasoline to yield carbon dioxide and water.

·       Presuming that a tank of gasoline contains 80 liters and that its density is 0.77 kg/liter, determine how many kg of CO2 are produced for each tank of gasoline burned. 

Top Answer

Question 1 CaCO 3  + 2HNO 3  --------->Ca(NO 3 ) 2  + H 2 O + CO 2 molare mass of CaCO3=40+12+48=100g/mol Moles of... View the full answer

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3) The amount of CO 2 produced per kg of CaCO 3 is 0.439 kg. 4) Limiting reagent... View the full answer

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