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How do you calculate the value of /\H for the reaction C2H4(g) + H2 (g) arrow pointing right C2H6 (g)

a 0.582-mol sample of an ideal gas is at 15*c and 81.8 kpa. calculate the volume for the ideal gas, as described by the ideal gas low.
a.0.887 L
b.10.4 L
c.17.0 L
d.22.4 L
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a tire contains a mixture of gases with the following partial pressures: Po2=51.3 kPa, Pco2= 0.10 kPa, Pn2 = 191.3 kPa, and P others= 2.3 kPa. calculate the total pressure as described by daltons law of partial pressures
a. 101.3 kpa
b. 183.7 kpa
c. 242.7 kpa
d. 245.0 kpa

the mole fraction of He is gaseous solution prepared from 4.0g of He, 6.5g of Ar. and 10.0g of Ne is

4NH3+5O2 yields 4NO+6H2O. In a certain condition this reaction occurs and yields 45.64 NO. How many grams of NH3 and O2 are needed to make 19.6 NO.

what are the types of forces in water

how many grams of potassium nitrate will you need to prepare 10L of a .75M solution

how many atoms are in 5.081 moles of Zn? In 1 lb. box of salt (NaCl), 1 lb=454 gram, how many atoms of Cl are in the box?

A solution is made by adding 70.00grams of sodium acetate to 400.0mL of 0.60 mol/L solution of acetic acid.
a.What is the pH of the solution?
b.10.0mL of 2.0M of sodium hydroxide solution was added to the solution above. Calculate the new pH.
c.10.0mL of 2.0M of hydrochloric solution was added to the solution in part a. Calculate the new pH.