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The following reaction has an equilibrium constant, Kc, of 2.00 x 10-2 at a particular temperature: 2 HI (g) ? H2 (g) + I2 (g) You have a container in which the concentration of HI is 0.58 M, the the concentration of H2 is 0.24 M, and the concentration of I2 is 0.97 M. (a) Calculate the value of the reaction quotient Q. (b) Is the system at equilibrium? If not, predict which way (right or left) the reaction will proceed to reach equilibrium.
When two atoms of 2H (deuterium) are fused to form one atom of 4He (helium), the total energy evolved is 3.83 × 10-12 joules. What is the total change in mass
You dissolve 650.0 g of sugar (C12H22O11) in 726 mL of water. The density of wat is 1.00 g/mL.
A 0.250g sample of citric acid dissolved in 25.0 mL of water requires 37.20 mL of 0.105 M NaOH for complete neutralization. What is the molecular formula of citric acid?
A 10.00 mL 0.25 M formic acid sample is being titrated with 0.25 M NaOH. What is the pH of the solution after adding 15.00 mL NaOH solution?? Ka=1.8x10-4
You have a solution of sodium nitrate containing 140g at 65 degrees Celsius. Is the solution saturated, unsaturated, or supersaturated.
A gas has a volume of 10 L at 0 degrees C. What is the final temperature of the gas in C if its volume increases to 27 L? Assume that amount of the gas and its pressure remain unchanged.
a mass of 48.5 g of a certain substanse can be disolved in 29.1 cm3 of water at 20 degrees celcius. Calculate the solubility of this substance per gram of water at the same temperature.
What is the volume of dry gas at STP of a gas collected over water that has a volume of 596 mL at 40 C and pressure of 101KPa
Enter the sign of H° and S° for the condensation for CO2. Enter the sign as either + or -. Also indicate the temperature conditions (high temperature or low temperature) that favor condensation of CO2
What type of feature will be observed in the EI mass spectrum of chlorobenzene? A) A signal at 112 and a signal at 114 in a ratio of 3:1
When 28 mL of a 430 mL stock solution containing 2.3 M AlCl3 is diluted to 114 mL, how many moles of Al3+ are in the new solution?
The Henry's Law constant of methyl bromide, CH3Br, is k = 0.159 mol/(L • atm) at 25°C. What is the solubility of methyl bromide in water at 25°C and at a partial pressure of 250. mm Hg?
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