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chemistry
february 2020
22

Chemistry Questions and Answers February 22, 2020

Expert-verified solutions to help you succeed

how much energy would be needed to raise the temperature of a 22.3g sample of aluminum [(C=0.895 (J/gC)] from 22.5 degrees C to 55.0 degrees C?

consider the following reaction: 3NO2(g) + H2O -> 2HNO3(l) + NO(g). How many moles of NO2 are required to react with 1.50 moles of H2O to form 3.00 moles of HNO3?

consider the following reaction: 3NO2(g) + H2O(l) -> 2HNO3(l) + NO(g). How many moles of the excess reactant remain if 4.00 moles of H2O and 10.00 moles of NO2 are mixed?

phosphorus trichloride is made by the following reaction: P4(s) + 6Cl2 -> 4PCl3(l). what is the maximum amount of phosphorus trichloride that can be formed if 10 molecules of P4 are mixed with 36 molecules of chlorine?

Be sure to answer all parts. The balanced equation for the decomposition of ammonium nitrate is 2NH 4 NO 3 ( s ) 2N 2 ( g ) + O 2 ( g ) + 4H 2 O( g ) (a) Select the mole ratios that relate moles of each product to the reactant NH 4 NO 3 . 2 mol NH 4 NO 3 2 mol N 2 2 mol N 2 2 mol NH 4 NO 3 1 mol O 2 2 mol NH 4 NO 3 4 mol H 2 O 2 mol NH 4 NO 3 2

The balanced equation for the reaction of aluminum metal and chlorine gas is 2Al( s ) + 3Cl 2 ( g ) 2AlCl 3 ( s ) Assume that 0.51 g Al is mixed with 0.29 g Cl 2 . (a) What is the limiting reactant? Al Cl 2 (b) What is the maximum amount of AlCl 3 , in grams, that can be produced? g AlCl 3

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