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A 14.1 g quantity of dry ice (solid carbon dioxide) is allowed to sublime in an apparatus like the one shown in the figure below. Calculate the expansion work done against a constant external pressure of 0.979bar and at a constant temperature of 18°C. Assume that the initial volume of dry ice is negligible and that CO2 behaves like an ideal gas.
The overall formation constant for Cu(NH3)42+ is 1.1x1013 at 25oC. What is [Cu2+], in moles per litre, at equilibrium when 8.3 g Cu(NO3)2 is dissolved in 0.500 L of 1.00 mol/L NH3(aq)? Assume that there is no volume change when the Cu(NO3)2 is add..
A 126 piece of metal is heated to 285 and dropped into 83.0 of water at 26. If the final temperature of the water and metal is 58.3.
How many moles of methane are produced when 71.1 moles of carbon dioxide gas react with excess hydrogen gas
a first order reaction has k 0.440 min-1 and the initial concentration of reactant is 0.840 m. what is the
What is the percent yield of a reaction in which 200 g phosphorus trichloride reacts with excess water to form 82 g HCl and aqueous phosphorus acid (H3PO3)
If the concentration of fluoride in fluoridated drinking water is 1 x 10 ^-5 M and the calcium ion concentration in blood is 2.5 x 10^ -3 M, why is there no danger of CaF2 precipitating in the blood stream, after drinking the water?
a mixture of 2- percent ammonia 55 percent hydrogen and 25 percent nitrogen by a volume 9.8 newton per square meter. what is partial pressure of ammonia?
Describe how you will prepare the 1.00 x 10-3 M phosphate solution using the phosphate stock solution provided (1.00 x 10-1 M) to create a 200 mL of 1.00 x 10-3 M phosphate solution.
How many grams of NaOH are needed to neutralize 20.0 mL of 0.150 M H2SO4 solution? (b) How many liters of 0.500 M HCl(aq) are needed to react completely with 0.100 mol of Pb(NO3)2(aq)
how many grams of ammonium nirtate must have reacted if 3.75dm3 of nitrogen gas was collected over water at 26C and 97.8 kPa
What volume of this gas must be burned to raise the temperature of 5.3 L of water by 5.0°C? Assume the gas is at 1.0 atm and 298 K.
How many grams of dry NH_4Cl need to be added to 1.60 of a 0.700 solution of ammonia, , to prepare a buffer solution that has a of 8.98. for ammonia is.
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