On a 5 day wilderness expedition you'll need to heat 4.0kg of water to the boiling point each day. the air temperature will average 25°c. you have available canisters of compressed propane c3h8 fuel, which you'll burn to heat the water. each canister has 100.g of propane in it. what is the minimum number of fuel canisters you must bring? the standard heat of formation of propane at 25°c is −103.85/kjmol. you'll probably find other data in the aleks data resource.
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Chemistry, 22.06.2019 01:30
Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%
Answers: 3
Chemistry, 22.06.2019 12:30
Avariable that is not being directly tested during an experiment should be changed varied experimented controlled
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Chemistry, 22.06.2019 19:20
For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)
Answers: 1
On a 5 day wilderness expedition you'll need to heat 4.0kg of water to the boiling point each day. t...
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