Hi all,
This is for those who have been practicing with 2009 practice test. I'm having trouble with #41 and #65. Please help!
41) Exactly 492g of kerosene are required to fill a certain container. If the density of the kerosene was 0.820g/ml-1, and at the same temperature the density of mercury was 13.5g/ml-1, then what mass of mercury in grams, would be necessary to fill the container?
65)Consider the equilibrium rxn: 2NO(g) + O2 (g)-->2 NO2 (g), K = 2.0.
Which of the following is the correct value of K for the reaction :
NO2(g)--> NO(g) + 1/2O2(g)?
Thank you!
This is for those who have been practicing with 2009 practice test. I'm having trouble with #41 and #65. Please help!
41) Exactly 492g of kerosene are required to fill a certain container. If the density of the kerosene was 0.820g/ml-1, and at the same temperature the density of mercury was 13.5g/ml-1, then what mass of mercury in grams, would be necessary to fill the container?
65)Consider the equilibrium rxn: 2NO(g) + O2 (g)-->2 NO2 (g), K = 2.0.
Which of the following is the correct value of K for the reaction :
NO2(g)--> NO(g) + 1/2O2(g)?
Thank you!