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3 Cu  +   8HNO3 → 3 Cu(NO3)2   +  2 NO  +  4  H2O

In the above equation, how many grams of water can be made when 18.5 moles of HNO3 are consumed?

 

Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0

Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:


S   +   6 HNO3 →  H2SO4  +  6 NO2  +   2 H2O

In the above equation, how many grams of water can be made when 17.2 moles of HNO3 are consumed?

Round your answer to the nearest tenth. If your answer is a whole number like 4, report the answer as 4.0

Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:


For the reaction C + 2H2 → CH4, how many grams of hydrogen are required to produce 2.2 moles of methane, CH4?

Round your answer to the nearest tenth. If your answer is a whole number like 4, report the answer as 4.0

Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:


2 NH3  +  3 CuO → 3 Cu  +  N2  +   3 H2O

In the above equation, how many grams of N2 can be made when 6.9 moles of CuO are consumed?

Round your answer to the nearest tenth. If your answer is a whole number like 4, report the answer as 4.0

Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:


Find the turning point and dertemine whether they are Maxima or minima.


i.y=x2-6x+9


ii.y=x2+5xz+z2


iii.y=x2+z2+v2

3 Cu  +   8HNO3   g 3 Cu(NO3)2   +  2 NO  +  4  H2O

In the above equation, how many moles of NO can be made when 74 moles of HNO3 are consumed?



Sodium chlorate decomposes into sodium chloride and oxygen gas as seen in the equation below. 

­­2NaClO -->  2NaCl +3O2

How many moles of O2 was produced by 5 moles of  NaClO? Round your answer to the nearest whole number.


S   +   6 HNO3  -->  H2SO4  +  6 NO2  +   2 H2O

In the above equation how many moles of water can be made when 24 moles of HNO3 are consumed?

2 NH3  +  3 CuO   g  3 Cu  +  N2  +   3 H2O

In the above equation, how many moles of N2 can be made when 76 moles of CuO are consumed?

Sodium chlorate decomposes into sodium chloride and oxygen gas as seen in the equation below. 

­­2NaClO -->  2NaCl +3O2

How many moles of NaCl were produced by 4 moles of  NaClO? Round your answer to the nearest whole number.


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