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A typical frequency used by GSM cell phones is 759.0 MHz. What is the wavelength of this signal in m?
How many molecules (not moles) of NH3 are produced from 1.52×10?4g of H2?
calculate delta s values for following reactions. in each case, account for the sign of delta s. a) C2H4(g) + H2(g) ---> C2H6(g)
What is Kp for the reaction at this temperature? B. For the reaction N2(g)+ 3H2(g) 2NH3(g) Kp = 2.20×10?3 at 268 C . What is K for the reaction at this temperature?
How many grams of the solid can be formed from 286 grams of calcium nitrate and 136 grams of Phosphoric acid?
Calculate the time it takes to deposit 0.100g of copper from a copper sulphate solution if a 3.50 amp current
urea at 25c are 0.605 atm and 0.245 amt respectively. calculate the van't hoff factor for the CaCl2.
Calculate the freezing point and boiling point of a solution of 383 g of glucose dissolved in 400 g of water
The peak was assigned as a Mn-Cl stretching mode of a contaminate manganese chloride species. Why would you expect this to be an erroneous assignment? Suggest a more likely source of this IR absorption.
An excited hydrogen atom emits a photon with a frequency of 1.141 x 10^14 Hz to reach the n = 4 state. From what state did the electron
what will be the final temperature of the solution in the calorimeter? The heat of solution,delta H solution, ofCaCl2of is -82.8kj/mole.
If 22 mL of 5.6 Molarity was spilled, what is the minimum mass of that must be added to the spill to neutralize the acid?
the reaction rate does not change when [B] increases from 1 M to 2 M. Which of the following is the correct rate law for the reaction?
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