posted by .

Standars enthalpy
Mg(OH)2 + H2SO4 = MgSO4 + 2 H2O

  • science -

    delta Hrxn = (sum delta H products)-(sum delta H reactants).
    Look these values up in a set of tables (one probably is in your text), substitute and solve.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    when 1.40 g of hydrated magnesium salfate is heated to constant mass, 0.68 g of the anhydrous salt remains. find the formula for the hydrated magnesium sulfate. MgSO4*xH2O ==> MgSO4 + xH2O grams water = 1.40 - 0.68 = ?

    How do you balance this equation? does the dot before the 6 mean something MgSO4˙6H2O = MgSO4 + H2O
  3. Chemistry Honors

    I need help balancing equations 1) CH4+O2-->CO2-->+H2O 2) Hf+N2-->Hf3N4 3) Mg+H2SO4-->MgSO4+H2 4) C2H6+O2 -->CO2+H2O 5) Pb(NO3)2 + NaI--> PbI2+NaNO3 6) Fe+O2-->Fe3O4
  4. Chemistry

    What mass of MgSO4 · 7 H2O is required to prepare 300 mL of a 0.511 M MgSO4 solution?
  5. chemistry

    What mass of MgSO4 · 7 H2O is required to prepare 300 mL of a 0.511 M MgSO4 solution?
  6. chemistry

    Calculate (a) the moles and (b) the mass of magnesium carbonate at the start if 0.2 moles of sulfuric acid is added to the magnesium carbonate and the excess sulfuric acid made up to a 250 cm3 solution. 25 cm3 of this solution required …
  7. chemistry

    If 0.605 g of magnesium hydroxide reacts with 0.900g of sulfuric acid, what is the mass of magnesium sulfate produced?
  8. Science

    The enthalpy change for the reaction 2 H2 + O2 > 2 H20 is -571.6 kJ. Determine the enthalpy change for the decomposition of 24.0g H2O. My Process -571.6 is the enthalpy of 2 mols of H2O. So the enthalpy of 1 mol of H2O will be -285.8. …
  9. chemistry

    Epsom salts, a strong laxative used in veterinary medicine, is a hydrate, which means that a certain number of water molecules are included in the solid structure. The formula for Epsom salts can be written as MgSO4 · x H2O, where …
  10. Chemistry

    A 2.00 g impure sample of MgO (molar mass 40.3 grams) was completely dissolved in 50.0 mL of 1.000 M H2SO4. The excess acid was back-titrated with 25.0 mL of 0.800 M NaOH. Calculate the percent purity of the MgO sample. [80.6 %] MgO(s) …

More Similar Questions