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A tank of 0.1-m3 volume contains air at 25oC and 101.33 kPa. The tank is connected to a compressed-air line which supplies air at the constant conditions of 45oC and 1,500 kPa. A valve in the line is cracked so that air flows slowly into the tank until the pressure equals the line pressure. If the process occurs slowly enough that the temperature in the tank remains at 25oC, how much heat is lost from the tank? Assume air to be an ideal gas for which CP = (7/2) R and CV = (5/2) R
Calculate the theoretical yield of Cu(NH3)4SO4xH2O based on 10.0 g of CuSO4x5H2O as the limiting reagent.
If you have 21.1 g of iron(II) nitrate that is dissolved to give 1.54 L of oslution, what is the molarity of the solution. What is the molarity of the nitrate ions
If sample of sodium is dropped into a container of water the reaction is 2Na +2H2O ---> 2NaOH +H2. If 10.4 g of hydrogen are produced, how many g of NaOH are also formed
a rigid tank of 0.03cubic meters volume contains a mixture of liquid water and water vapor at 80kpa. the mass of the
What is the concentration of Magnesium, Cholride, Silver, and Nitrate Ions at the end of the reaction
A solution of KHC2O4.H2C2O4.2H2O three replaceable hydrogen is 0.200 N as an acid. Explain what is its normality as reducing agent
Write a nuclear equation to describe the spontaneous fission of 244 Am 95 to form I-134 and Mo-107. Determine how many netrons are produced in the reaction
What is the pH of a one liter mixture of .15 M nitrous acid and .20 M sodium nitrite after .020 mol of HCl have been added (no change in volume). (Ka for nitrous acid is 4.0x10^-4.
For the reaction 2KClO3(s) --> 2KCl(s) + 3O2(g) delta H = -91.0 kJ a) what is delta h for the reaction-------------------------------2KCl + 3O2 ---> 2KClO3 b) what is the delta H for the reaction-------------------------KClO3 ------> KCl + 3/2 O2
Calculate the mass, in grams for a gold sample that absorbs 225 J to change its temperature from 15 Celsius to 47 degrees celsius.
An ether and an alkene are formed as by products in n-butyl bromide synthesis. Draw the structures and mechanism for their formation
When Heated, KClO3 decomposes into KCl and O2. 2KClO3 arrow 2KCl+3O2 If this reaction produced 25.8 g of KCl, how much O2 was produced (in grams)
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