# ch104HW21 - mass Name CH 104 Homework#21 9.58 L of methane...

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Name:_______________ CH 104 Homework #21 Read Chapters 1-5 Suggested Problems all problems from chapters 1-5 Explain how bouncing a cold basketball causes it to bounce better? Would it take more heat to melt 10 grams of ice or vaporize 10 grams of water? Explain. Calculate how much more heat. Calculate the amount of heat needed to raise the temperature of 250 grams of H 2 O at -50 ° C to 120 ° C. At 98.5kPa, at 24C, 3.75 liters an unknown gas has a mass of 62.5 grams. Calculate its molar

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Unformatted text preview: mass. Name:_______________ CH 104 Homework #21 9.58 L of methane gas is collected at 781.4 mmHg and 62.5 °F. What would be the volume of this gas at standard conditions? BaO + H 2 SO 4---> BaSO 4 + H 2 O (a) How much BaSO4 can be formed from 196.0 g of H 2 SO 4 ? (b) If 81.00 g of water is formed during this reaction, how much BaO was used? What kind of relationship do volume and pressure have in Boyle’s Law? Explain your answer....
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