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What is the density (in grams per liter) of a gas mixture that contains 26.0 % F_2 and 74.0 % He by volume at 743 mm Hg and 28.5 C?
Barium sulfate, BaSO4, is made by the following reaction: Ba(NO3)2(aq) + Na2SO4(aq) à BaSO4(s) + 2NaNO3(aq).
calculate the freezing point of a nonionizing antifreeze solution containing 388 g ethylene glycol, C2H6O2 and 409 g of water.
In a reaction 82.00 g of sodium reacts with 74.00g of ferric oxide to form sodium oxide and iron metal. calculate the mass of solid iron produced
Do all chemical compounds undergo each type of chemical reaction,i.e. synthesis, decomposition, metathesis-precipitation, metathesis-neutralization, redox-single displacement, redox-combustion and can this information be useful to a criminal inves..
What is the molarity of the Na 2 S 2 O 3 solution if a 0.150 g sample of KIO 3 required 10.7 mL of Na 2 S 2 O 3 solution for its standardization?
A 4.22g sample of CuS was added to excess HCl, and the resulting H2S was collected over water. What volume of H2S was collected at 32 degrees celsius
Calculate the ratio of CH 3 NH 2 to CH 3 NH 3 Cl required to create a buffer with pH = 10.14. Express your answer using two significant figures.
Calculate the amount of heat [kcal] released when 50.0 g of steam at 100 °C hits the skin, condenses, and cools to a body temperature of 37 °C.
a gas mixture being used to stimulate the atmosphere of another planet consists of 323 mg of methane, 165 mg of argon, and 223 mg of nitrogen. The partial pressure of nitrogen at 275 k is 19 kPa.
occurring at 800 K and 1atm. The initial mixture contains 1 mol of SO2 and 0.5 mol of O2. The reaction mixture can be considered to be an ideal gas.
If the rate increases by a factor of 10 as the temperature increases from 35 °C to 70°C, what is the activation energy for the reaction?
Molar mass from volumetric data, 2.64g of an organic base, isolated from a shrub in the mountains of Peru was dissolved in 100mL of water. 25.0mL of this solution required 27.5mL of 0.250mL HCL for complete neutralization
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