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At equilibrium a 2L vessel contains .410 mol of H2, .130mol of Br2, and 36.0 mol of HBr. What is the equilibrium constant for the reaction at this temperature?
approximately how many grams of NH4Cl will dissolve in 100g of H2O at 70 C?
what volume and mass of steam at 100c and 1.00 atm would release the same amount of energy during condensation as 100.cm3
calculate the mass of sodium nitrate required to produce 7.00 grams of oxygen according to the following reaction: 2NaNO3 = 2NaNO2 + O2
If 25.0 mL of AgNO3 is needed to precipitate all the Cl- ions in a 0.795 mg sample of KCl(forming AgCl), what is the molarity of the AgNO3 solution.
What volume in mL of 0.075 M NaOH is required to neutralize the following solutions? A. 200 mL of a 0.0500 M H2C2O4(diprotic acid) solution.
What magnitude of current is required to produce 1.0 kg of sodium metal in one hour by electrolysis?
The accompanying drawing shows 4 water molecules interacting with glycine. Four dotted lines are labeled with numbers 1 through 4. As labeled by these numbers, which of the dotted lines could represent hydrogen bonds?
How many calories are required to heat 25.0 g of platinum (specific heat capacity = 0.032 cal/g.K) from 24.5 oC to 75.0 oC?
A mixture of gases contains 0.290 mol CH4, 0.240 mol C2H6, and 0.300 mol C3H8. The total pressure is 1.40 atm. Calculate the partial pressure of the gases.
The rate is measured at 300 K. To what temperature must the reaction be raised to double the rate? a) 310k b)333k c)353k d)363k e)373k f)412k
What is the pH of a buffer prepared by adding 180 mL of 0.100 M NaOH to 200 mL of 0.100 M acetic acid? (Ka for CH3COOH = 1.8 x 10-5)
If 156 mL of wet H2 is collected over water at 24C and a barometric pressure of 736 torr, how many grams of Zn have been consumed?
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