Chemistry, 03.05.2020 13:30 teescub812
1)4FeCr2O7+ 8K2CO3 + 1 O2ο 2Fe2O3+ 8K2CrO4 + 8CO2 (a) How many molesof FeCr2O7are required to produce 44 molesof CO2? (b) How many moles of O2are required to produce 107.9 molesof Fe2O3? (c) If 309 molesof FeCr2O7react, how many molesof O2will be consumed?
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7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 β 4 sentences in your explanation. 8. when a 2.5 mol of sugar (c12h22o11) are added to a certain amount of water the boiling point is raised by 1 celsius degree. if 2.5 mol of aluminum nitrate is added to the same amount of water, by how much will the boiling point be changed? show all calculations leading to your answer or use 3 β 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100β°c, how much steam at 100β°c is produced? show all calculations leading to an answer. 10. the freezing of water at 0β°c can be represented as follows: h2o (l) β h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 β 4 sentences explain why applying pressure causes ice to melt.
Answers: 1
1)4FeCr2O7+ 8K2CO3 + 1 O2ο 2Fe2O3+ 8K2CrO4 + 8CO2 (a) How many molesof FeCr2O7are required to produce...
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