The following thermochemical equation is for the reaction of NH4Cl(s) to form NH3 (9) and HCl(g). NH4Cl(s) → NH3(g) + HCl(9) AH 176 kJ How many grams of NH4Cl(s) would be made to react if 50.2 kJ of energy were provided? grams =

The following thermochemical equation is for the reaction of sodium(s) with water(1) to form sodium hydroxide(aq) and hydrogen(g). 2Na(s) + 2H2O(1)- →2NaOH(aq) +H2(g) AH= -369 kJ When 5.86 grams of sodium(s) react with excess water(1), kJ of energy are

A chemist measures the energy change AH during the following reaction: 2 Fe,03(5) → 4 Fe(5)+O,(g) AH=560. kJ Use the information to answer the following question. Suppose 49.9 g of Fe,0, react. Calculate how much heat will be released or absorbed. ? Round your answer to 3 significant digits.

The following thermochemical equation is for the reaction of HBr(g) to form H₂ (g) and Br2 (1). 2HBr(g) → H₂(g) + Br2 (1) AH 72.6 kJ How many grams of HBr(g) would be made to react if 11.2 kJ of energy were provided? grams =

When N2(g) reacts with H2(g) to form NH3(g) , 92.2 kJ of energy are evolved for each mole of N2(g) that reacts.Write a balanced thermochemical equation for the reaction with an energy term in kJ as part of the equation

Ethyl alcohol, C2H5OH, has a specific heat of 2.40 ?? °?. Which of the following statements best describes what this means? a) It takes 1 joule of energy to increase the temperature of 1 gram of ethyl alcohol by 2.40 °C. b) It takes 1 joule of energy to increase the temperature of 2.40 grams of ethyl alcohol by 1 °C. c) It takes 2.40 joules of energy to increase the temperature of 1 gram of ethyl alcohol by 1 °C. d) It takes 2.40 joules of energy to increase the temperature of 2.40 grams of ethyl alcohol by 1 °C

The combustion of propane is represented by the following reaction: C3H8le) 50 2(e) 3CO 2(g) 4H2O(g) 2043 kJ If 175 grams of propane react, how many kilojoules of heat will be released? 357,525 kJ 8,126 kJ 71,505 kJ 3.77 kJ

After helping a friend move, I was super hungry and decided to make a lot of pasta (all Carbohydrates). But instead of eating the pasta, I decided to perform a nutritional calorimetry experiment. I determined that 4 gallons of water could be heated by 29.2 K from the energy in the prepared pasta. How many grams of carbohydrates were in the prepared pasta?

How much heat (in kilojoules) is evolved when 135 g of aluminum reacts completely in the following reaction? (the molar mass of aluminum is 27.0 g/mol) 2Al + Fe203 2Fe + Al203 AH = -80 kJ -->

The following thermochemical equation is for the reaction of iron(III) oxide(s) with hydrogen(g) to form iron(s) and water(g).Fe2O3(s) + 3H2(g)2Fe(s) + 3H2O(g)     H = 98.8 kJ When 44.6 grams of iron(III) oxide(s) react with excess hydrogen(g), kJ of energy are   .