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During the electrolysis of an aqueous solution of CuSo4 using inert electrodes, the mass of the anode remains the same but the cathode gains mass? Why is this so?
The average molecular speed in a sample of CH4 gas is 641 m/s at 311 K. The average molecular speed in a sample of He gas is ________ m/s at the same temperature.
Some atomic properties depend on the average value of 1/r rather than the average value of r itself. Evaluate the expectation value of 1/r for a hydrogenic helium 1s orbital.
Calculate the number of molecules inside the cell, which is 2.2 ?m long and 1.2 ?m in diameter.
An organic liquid is a mixture of methyl alcohol and ethyl alcohol. A 0.220g sample of the liquid is burned in an excess of O2(g) and yields 0.342 g CO2(g). What is the mass of methyl alcohol in the sample?
Cyclopropane, C3H6, is an anesthetic given by inhalation. How many grams are in 0.30 mole of cyclopropane? The sedative Demerol hydrochloride has the formula C15H22ClNO2. How many grams are in 2.2x10^-2 mole of Demerol hydrochlorde?
Assume further that as the normal fruit flies die off quickly, a population of the resistant flies increases geometrically (that is, 1, 2, 4, 8 ...) If a new generation occurs every 62 days, in how many days will the fruit fly population be restor..
What is the total pressure in a 11.0 L flask 20.0°C, which contains 0.127 moles of H2 and 0.288 moles of N2
how might the addition of water helped convert this by product into the desired product?
Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 8.00 g of sodium carbonate is mixed with one containing 4.75 g of silver nitrate.
(0.0250 moles)(5 moles of the H20 / 1 mole of copper sulfate pentahydrate)(18.01 g/mol of H2O) = 2.25 grams, on top, in order to achieve the real molarity of CuSO4 when in solution?
Calculate and plot the points where 0.00, 5.00, 10.00, 20.00, 25.00, 30.00, 35.00, 40.00, 45.00, and 50.00 mL of 0.075M KOH has been added
Which of the following reactions will have the greatest rate at 298 K. Assume the frequency factor A is the same for all reactions. EXPLAIN YOUR ANSWER. No credit given if no explanation.
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