Chemistry Answers

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_3­ -->  2NaCl +3O₂

How many moles of NaCl were produced by 4 moles of  NaClO_3­? Round your answer to the nearest whole number.

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

In the above equation, how many moles of water can be made when 40 moles of HNO₃ are consumed?

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

In the above equation, how many moles of H₂SO₄ can be made when 89 moles of HNO₃ are consumed?

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

­­2NaClO_3­ -->  2NaCl +3O₂

How many moles of NaClO_3­ were needed to produce 4 moles of O₂? Round your answer to the nearest whole number.

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

In the above equation, how many moles of water can be made when 32 moles of NH₃ are consumed?

How many moles of Br atoms are in 0.5 mol of Br2 molecules?

gwi nam is working on a fluid which flows at 10lb/min and operates at steady flow process in his laboratory.The fluid has an initial pressure of 200 psia dropped to 20 psia.Its speed increases from 200 ft/s to a final velocity of 1000ft/s.The internal energy decreases 25 BTU/lbm and the specific volumes increases from 18 cubic ft/lb.Assuming that no heat is transferred.Determine the work done in BTU/min.

800cm³ of exploding gas of 100k/pa at 291k is produced during the electrolysis of an acid solution for 1500 ses. calculate the current

How many moles are there in:

(a) 6g of Magnesium

(b) 88g of CO2