A 5.0-liter tank of oxygen gas is at a pressure of 3.0 atm. What volume of oxygen will be available if the oxygen is used at standard pressure?
10 points
A. 1.7L
B. 5.0L
C. 15L
D. 150L

If 1.8 l of water is added to 2.5l of a 7.0 molarity koh solution, what is the molarity of the new solution

The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.