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A 250.0 g sample of french fries is placed in a calorimeter with 500.0 g of water and an initial temperature of 21.0 C. After combustion of the french fries the water has a temperature of 48.0 C. What is the heat content of the french fries in kJ/g? a) 22600 kJ / b) 282 kJ / c) 70.9 kJ / d) 22.6 kJ / e) 2.63 kJ
What is the concentration of a solution made by diluting 95 mL of 6.0 M HCL to a final volume of 750 mL
how many grams of potassium permanagate are needed to discolor 1 gram of 2-pentene in basic solution.
What product forms at each electrolode in the aqueous electrolysis of the following salts: 1. LiF 2. SnSO4
4 fess 7 o2g 2 fe2o3s 4 so2gat constant temperature and pressure what is the maximum volume in liters of fe2o3s that
suppose 1.5 mol of methane is allowed to react with 4 mol of oxygen. what is the limiting reagnant?
The temperature of the water and that of the gas are identical at 26oC. how many moles of helium have been evolved.
The Born-Haber cycle is a series of steps that represent the formation of an ionic compound from a metal and a nonmetal. For example, the steps in a Born-Haber cycle for the formation of NaCl(s) consist of sublimation of the metal Na atom
NaCl(aq) + H2O(l) Cl2(g) + H2(g) + NaOH(aq) (b) How many moles of NaOH(aq) are formed in the solution in this process? _ moles of NaOH(aq) are formed.
A solution of NaOH(aq) contains 7.4 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25 °C.
How much sodium nitrate (NaNO3), in grams, should be added to water to prepare .05L of solution with a molarity of .25M?
A 130 mL stock solution contains 1.5 M CuF2. When 13 mL of the stock solution is diluted to 25 mL, what will the concentration of F- ions be?
reaction does k decrease over time what about in a 0 and 1 st order reaction. In a second order reaction does the half life increase over time what about in a 0 and 1 st order reaction?
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