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For the equilibrium 2 SO3(g) ↔ 2 SO2(g) + O2(g), Kc=4.08x10-3 at 1000K. Write the equilibrium expression then solve for O2 if the equilibrium amounts are SO3(g) = 1.25M and SO2(g) = 0.0750M.
Determine the Kc of the synthesis of ammonia from nitrogen and hydrogen,
N2(g) + 3H2(g) ↔ 2NH3(g) at 300ºC. The equilibrium amounts of N2 and H2 are 1.24 M and the NH3 equilibrium amount is 4.55 M .
N2(g) + 3H2(g) ↔ 2NH3(g) at 300ºC. The equilibrium amounts of N2 and H2 are 1.24 M and the NH3 equilibrium amount is 4.55 M .
Gas barbecues burn propane using oxygen from the air. If 5.00 L of propane is burned, predict the volume of oxygen, at the same temperature and pressure, required for complete combustion.
Using the solubility table, which of the following chemicals would be insoluble (solid) in solution.
For the cold pack shown below, the temperature on the outside surface has dropped considerably from its initial temperature of 25 °C. Which of the following provides the best explanation for this temperature decrease?
calculate the mass of 2.4 moles of ammonia, NH3
answer: __grams
A student performing this reaction makes 8.5 grams of ammonia, NH3. How many moles of ammonia did she make?
answer:__moles
answer: __grams
A student performing this reaction makes 8.5 grams of ammonia, NH3. How many moles of ammonia did she make?
answer:__moles
1. Hydrogen peroxide is a powerful oxidizing agent that is used in concentrated solution in rocket fuels and dilute solution as a hair bleach.
A 30% by mass of H2O2 solution has a density of 1.11g/ml. Calculate it's morality, mole fraction of H2O2, and molarity.
2. You have a stock solution of 14.8M NH3.
How many milliliters of this solution should you dilute to make 100 mL of 0.250 MH3?
3. If you take a 10mL portion of the stock solution and dilute it to a total volume of 0.250L, what will be the concentration of the final solution?
4. Given the reaction:
H2SO4 (aq) + 2NaOH(aq) 2H2O(I) + Na2SO4(AQ)
What is the concentration of the NaOH solution if 45.7 mL of 0.5MH2SO4 is used to neutralized a 20mL NaOH solution?
A 30% by mass of H2O2 solution has a density of 1.11g/ml. Calculate it's morality, mole fraction of H2O2, and molarity.
2. You have a stock solution of 14.8M NH3.
How many milliliters of this solution should you dilute to make 100 mL of 0.250 MH3?
3. If you take a 10mL portion of the stock solution and dilute it to a total volume of 0.250L, what will be the concentration of the final solution?
4. Given the reaction:
H2SO4 (aq) + 2NaOH(aq) 2H2O(I) + Na2SO4(AQ)
What is the concentration of the NaOH solution if 45.7 mL of 0.5MH2SO4 is used to neutralized a 20mL NaOH solution?
Find the PH in which the hydrogen ion, H+ concentration is 6. 48×10^–6
Which of the following are isotopes, choose all that apply.
a) Element X with atomic number 10 and atomic mass 21
b) Element Y with atomic number 11 and atomic mass 21
c) Element Z with atomic number 10 and atomic mass 22
d) Element M with atomic number 12 and atomic mass 21
a) Element X with atomic number 10 and atomic mass 21
b) Element Y with atomic number 11 and atomic mass 21
c) Element Z with atomic number 10 and atomic mass 22
d) Element M with atomic number 12 and atomic mass 21
Which is larger,cl or al? And why
