Chemistry

Calculate triangle heat if 85.0 grams of SnO2 react in the following equation:

2SnO2 arrow 2SnO + O2

Please write the steps and the answer

Thank You

  1. 👍
  2. 👎
  3. 👁
  1. Look up heat formation SnO2 and SnO.
    delta Hrxn = (DHproducts)-(DHreactants).

    [Note: heat formation O2 is zero).

    Delta Hrxn will be for 2 moles SnO2. Find the proportion of 85.0 grams.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics vectors

    Consider the two vectors A with arrow = 3 i − j and B with arrow = − i − 6 j. Calculate the directions of A with arrow + B with arrow and A with arrow − B with arrow. A with arrow + B with arrow ° (counterclockwise from

  2. stoichiometry

    Ammonia gas reacts with oxygen gas according to the following equation: 4NH3 + 5O2----4NO + 6H2O a. How many moles of oxygen gas are needed to react with 23 moles of ammonia? (29 mole) b. How may grams of NO are produced when 25

  3. Physics

    A 50.0 g silver spoon at 20.0 degrees Celsius is placed in a cup of coffee at 90.0 degrees C. How much heat does the spoon absorb from the coffee to reach a temp. of 89.0 degrees C? Rememeber this equation. It, or a slight

  4. Thermochemistry

    3CO(g)+ Fe2O3(s) --> 2Fe(s) + 3CO2(g) + 24.7 kJ. How much heat is released when 56 grams of CO react?

  1. chemistry

    Use the equation below to answer the questions that follow. Br2 + Cl 2 ⎯→ 2BrCl a. How many moles of BrCl form when 2.74 mol Cl2 react with excess Br2? b. How many grams of BrCl form when 239.7 g Cl2 react with excess Br2? c.

  2. Chemistry

    can you please please help me with these questions I don't know how to do any of them. I know how to calculate moles and grams and mole ratio,etc but I don't understand the limiting excess reactant and yield stuff. Thanks! 1.In

  3. chemistry

    For the question(s) that follow, consider the following equation. 2Mg + O2¨ 2MgO How many grams of MgO are produced when 40.0 grams of O2 react completely with Mg?

  4. Chemistry

    Show how you would calculate the % yield of hydrogen if 40.0 grams of magnesium react with an excess of nitric acid producing 1.70 grams of hydrogen gas. Mg + 2 HNO3 ---> Mg(NO3)2 + H2

  1. Chemistry

    Tin (Sn) exists in earths crust as SnO2. Calculate the percent composition by mass of Sn and O in SnO2. Please help me with this question I'm so confused

  2. chemistry

    An electric range burner weighing 614 grams is turned off after reaching a temperature of 499.0oC, and is allowed to cool down to 22.2oC. Calculate the specific heat of the burner if all the heat evolved from the burner is used to

  3. Chem

    If 2.00 grams of potassium are allowed to react with 2.00 grams of bromine by the following equation, which reactant is the limiting reactant?

  4. Physics

    Problem: A hunter shoots an arrow at a deer directly away from him. When the arrow leaves the bow, the deer is at a distance of 38 m. When the arrow strikes, the deer is at a distance of 51.00 m. The speed of the arrow is 65.00

You can view more similar questions or ask a new question.