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If 1.20 g CO3 are reacted, how much NH3 will be produced?
Molar masses:
60.0 g/mol CO3, 17.0 g/mol NH3
A. 0.17 g CO3
B. 0.68 g CO3
C. 8.47 g CO3
D. 2.12 g CO3
If 0.425 mol H₂O are produced, how
many moles of CO3 were reacted?
A. 0.425 mol CO3
B. 0.850 mol CO3
C. 0.213 mol CO3
D. 0.626 mol CO3
25.0 g H₂ are reacted, how much Fe is
produced?
Molar masses: 2.02 g/mol H2, 55.9 g/mol Fe
A. 0.903 g Fe
B. 1,112 g Fe
C. 692 g Fe
D. 346 g Fe
10.3 moles of H₂O are produced. How
many moles of Fe are also produced?
A. 15.5 mol Fe
B. 6.87 mol
C. 5.2 mol Fe
D. 20.6 mol Fe
If 17.3 g SO₂ are reacted, how much O₂
is consumed?
Molar masses: 32.0 g/mol O₂, 64.0 g/mol SO2
A. 17.3 g O2
C. 0.270 g O2
B. 0.135 g O2
D. 4.33 g O2
using a table, differentiate between the percentage composition by volume of atmospheric air and dissolved air
Under constant pressure condition, a sample of hydrogen initially at 75 degree celcius and 6.2 L is cooled until its final volume is 5.4 L. What is it final temperature?
A sample of gas has a volume of 85.8 mL at 35 degrees. what volume will the sample occupy at 0 degrees when the pressure is held constant?
calculate the vapour pressure of solution at 25°C containing 26.9g of urea CO(NH2)2 in 712g H2O.( Vapour pressure of water at 25°C is 23.8mmHg)
When 0.600 liters Ar at 1.20 atm and 227°c is mixed with 0.200 liters of oxygen, at 591 torr and 127°c in a 400ml flask at 27°c, what is the pressure in the flask?
