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The following reaction has achieved equilibrium. Predict the effect on the formation of phosphorous pentachloride (increase, decrease or no effect) for the stated changes to the system:
PCl3(g) + Cl2(g) = PCl5(g)
The concentration of chlorine is decreased.
How many moles of NaOH would be required to completley neutralize 37.22mL of 0.25M HCl.
For the reaction SO3+H2O yields H2SO4, how many grams of sulfur trioxide are required to produce 4.00 mol of sulfuric acid?
When the sodium atom becomes a sodium ion, how does the size and electron configuration of the sodium atom change?
What is the volume of 455 mL of oxygen gas at 67.0°C and 300. mm Hg if the conditions are adjusted to 890. mm Hg and 107°C? Assume the amount of gas is held constant.
Draw the possible side products that may occur in the bromination of trans stilbene by pyrdinium perbromide
the water for the pan is not saturated with CO2. Will the reported percent CaCO3 in the original sample be too high, too low, or unaffected? Explain
A drug with the molecular formula C25H38O5 has 2.14 x 10^23 carbon atoms. What is the mass of the sample?
a 720-mL sample of water was cooled from 60 degrees celsius to 10 degrees celsius. How much heat was lost?
Calculate Ecell for the following electrochemical cell at 25 °C Pt(s) | H2(g, 1.00 atm) | H+(aq, 1.00 M) || Pb2+(aq, 0.150 M) | Pb(s) given the following standard reduction potentials.
What quantity of energy as heat is required to vaporize a 60 mL of mercury at 357 C, its normal boiling point? The density of mercury is 13.6 g/mL and Atomic Mass is 200.59 g/mol.
A gas sample occupies a volume of 20cm^3 at 40 degree Celsius and at a pressure of 1.60atm. What volume will it occupy at STP?
How many grams of CaH2 are needed to generate 53.5 L of H2 gas if the pressure of H2 is 1 atm at 194 C.
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