Question

Irs.S0 L of gas at a gauge pressure of 720 kPa and a temperature at d sa s00 kPa and the temperature is 250 "C, what is the final volume? pressure Assume the atmospheric pressure is 101 kPa. oscupies a volume of 25.0 L at 15 "C. At what temperature will the gas occupy a 7. A volume of 72.0 L at the same pressure? s tels of hydrogen combines completely with 8 g of oxygen to form water, (a) bow many grams of hydrogen does it take to combine completely with 48 g of oxygen? (b) How many molecules of water are formed with this combination of hydrogen and oxygen? 9. In ammonia, 14 g of nitrogen combines completely with 3 g of hydrogen. (a) How grams of hydrogen does it take to combine completely with 56 g of nitrogen? (b) How many many molecules of ammonia are formed with this combination of hydrogen and nitrogen? 10. If 1 g of hydrogen combines completely with 8 g of oxygen to form water, (a) how many grams of water can you make with 8 g of hydrogen and 32 g of oxygen? (b) How many molecules of water are formed with this combination of hydrogen and oxygen? 11. Given that 12 g of carbon combines completely with 16 g of oxygen to form carbon monoxide, (a) how many grams of carbon monoxide can be made from 36 g of carborn and 80 g of oxygen? (b) How many molecules of carbon monoxide are formed with this combination? (c) What is the mass of the element that is left over? 12. If 100 g of hydrogen combines completely with 800 g of oxygen to form water, (a) how y grams of water can you make with 1-kg of hydrogen and 1-kg of oxygen?(Hint One mole of water molecules consists of 1 mole of oxygen (16 g) and 2 moles hydrogen (I g each).) (b) How many moles of water are formed hydrog of with this combination of en and oxygen? (c) What is the mass of the element that is left over? 13. Find the area of contact an object has with a given surface ifit weighs 10 N and exerts a pressure of 30 N/m2.I

Answer 1

P: C 250,C 52 3 K て 2 23 8.3.5