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Physical Chemistry
What does it mean to solute molecules in a solution ?
Physical Chemistry
When we dissolve a solute in water, for example a salt, there is dissolution, can we also say that the salt melted?
is it correct to considere this as a melt? is dissolution completly different then melting?
Thank you
is it correct to considere this as a melt? is dissolution completly different then melting?
Thank you
Physical Chemistry
find the rate constant for first order reaction
if 75%of reaction is completed in 6.03 sec
if 75%of reaction is completed in 6.03 sec
Physical Chemistry
1.2 moles of gas known SO2Cl allowed to decompose according to the reaction equation SO2Cl (g) SO2 (g) + Cl2 (g). if the equilibrium state are 0.4 cabbage calorific gas, determine the degree of dissociation
Physical Chemistry
How much space would 2.56 moles of xenon gas occupy at STP?
Physical Chemistry
at a certain temurature and pressure, .20 mol of CO2 has a volume of 3.1L. a 3.1L sample of hydogen at the same tempurature and pressure--
Physical Chemistry
If I mix 5 gallons of gasoline with 20 gallons of water in a 55 gallons drum, what is the makeup of the vapor? I know gasoline floats on water, but does that block all water vapor?
Physical Chemistry
the vanderwalls constant b for a real gas is 0.02788 lit/mole .calculate the radius of molecule?
Physical Chemistry
You are going to complete several meteorological tests using a large weather balloon. You wish to check the temperature at 3000 meters altitude. You want to make sure the balloon will not burst before it reaches this height. Some calculations are needed. Knowing that the balloon manufacture guarantees the balloon up to 60.0 Liters in size. Will the balloon make it to the necessary height without bursting? The temperature at ground level is 20 C. The pressure is 755 mm hg. The volume of the balloon prior to release is 44.8 Liters. It is filled with helium which is lighter than air. For both calculation you will be using PV =nRT show all work for any credit.
1. What amount in grams of helium is in the balloon? Hint remember n = moles
2. Can the balloon ascend to 3000 meters without bursting? the Temperature, pressure at 3000 meters are Temp = -4 C, Pressure = .686 atm.
1. What amount in grams of helium is in the balloon? Hint remember n = moles
2. Can the balloon ascend to 3000 meters without bursting? the Temperature, pressure at 3000 meters are Temp = -4 C, Pressure = .686 atm.
Physical Chemistry
viscosities of gases increass with temperature but the reverse is true for liquids.explain
