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Suppose a 250. mL flask is filled with 0.10 mol of NO3 and 1.0 mol of NO2.
The following reaction becomes possible: NO3 g +NO g --><--2NO2 g
The equilibrium constant K for this reaction is 2.08 at the temperature of the flask.
Calculate the equilibrium molarity of NO2. Round your answer to two decimal places.
A backpacker wants to carry enough fuel to heat 2.7 of water from 30 to 100.0 . If the fuel he carries produces 36 of heat per gram when it burns, how much fuel should he carry? (For the sake of simplicity, assume that the transfer of heat is 100 ..
Combining 0.351 mol of Fe203 with excess carbon produced 16.8 g of Fe. Fe2O3 + 3C ----> 2Fe + 3CO What is the actual yield of iron in moles?
Problem- Balance the following oxidation-reduction reaction in basic solution. Your work should include two balanced half-reactions. The equation that needs to be balanced is: I2 (s) -> I- (aq) + IO3-(aq)
Let us compare the effectiveness of equal masses of these two compounds in lowering the freezing point of water by calculating the freezing point depression of solutions containing 230. g of each salt in 1.00 kg of water.
a 45 g piece of ice at 0 c is added to a sample of water at 19c. all of the ice melts and the temperature of the water
you have dissolved 0.298 g of soda ash into 80 mL of deionized water. It took 19.8 mL of 0.0998 M HCl to titrate the solution to the second equivalence point. What is the percent Na2CO3 in the soda ash?
Calculate the change in pH when 9.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution. change in pH = ?
The vapor pressure of a liquid chloroform, CHCl3, is 400.0 torr at 24.1 c and 100.0 torr at -6.3C , what is Hvap of chloroform
A rigid container of O2 has a pressure of 388kPa at a temperature of 713K. What is the pressure at 273K.
lambda(symbol) for one line of the hydrogen spectrum is .4118 x 10^-4 cm. Use this value in the Rydberg equation to calculate the RH value using n1 = 2, and n2 = 3.
A galvanic (voltaic) cell consists of an electrode composed of magnesium in a 1.0 M magnesium ion solution and another electrode composed of copper in a 1.0 M copper(I) ion solution, connected by a salt bridge. Calculate the standard potential for..
In visible spectroscopy we place a sample in a source and observe transmittance. if we observe 420nm absorbed by the sample what color would our eye observe. explain this process in some detail
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