Mass of hydrogen gas released
What is the mass of hydrogen gas released from 2.70 g of aluminum metal and hydrochloric acid?
2 Al(s) + 6 HCl(aq) = 2 AlCl3(aq) + 3 H2(g)
a. 0.303 g
b. 0.202 g
c. 0.606 g
d. 0.101 g
e. 0.135 g
Now Priced at $10 (50% Discount)
A certain first-order reaction has a rate constant of 2.75 x 10^-2 s^-1 at 20 degrees C. What is the value for k, the reaction constant, at 60 degrees if the Energy of activation = 75.5 kJ/mol?
You are interested in determining the rate of reaction with respect to I in the reaction of KI and Na2S2O3 to form I2and K2S2O8. What reagent volume(s) would you vary in time trials to get this information?
For the decomposition of solid ammonium chloride into ammonia gas and hydrogen chloride gas Kp = 1.1 x 10-16. Calculate the change in standard free energy for this decomposition reaction.
You take a 15.00 mL aliquot of a 0.175 M acetic acid solution and a 30.00 mL aliquot of a 0.145 M sodium acetate solution and dilute to 100.00 mL. What is the pH of the resulting buffer?
A mixture in a container at this temperature has a total pressure of 2.0 atm. The molar percent of N2O4 is 12.0% and NO2 is 88.0%. Calculate the reaction quotient, Qp.
What is the total energy, in kJ, needed to raise 20 g of CH4O (methanol) from - 120 °C to 100 °C? Show your work.
What is the change in volume of the balloon as it ascends from 1.00 atm to a pressure of 220. torr?
Draw the polymer that results from phthalic anhydride and glycerol. d. Are these addition or condensation polymers? e. Describe and explain the differences between the polymers formed from the reaction of phthalic anhydride with ethylene glycol ve
Show by writing appropriate chemical equation how each of the following conversions could be achieved: 2-hexyne from 1,1-dichlorobutane.
What is the volume of a 1.25 M NaOH solution required to neutralize a mixture of 50.0 mL vinegar (5.0% m/V acetic acid) and 50.0 mL concentrated acetic acid (95.0% m/V) solution? Acetic Acid: 60.05 g/mol
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!