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The mass of a flask is measured when the outside of the flask is wet. However in a previous part of the lab, the outside of the flask is dried before its mass is measured. 1) Will the mass of the vapor in the flask be too high too low, or unaffected? 2) Will the molar mass of vapor in the flask be reported too high, too low, or unaffected?
A mixture initially contains A,B, and C in the following concentrations: A= 0.650 M, B= 0.800M , and C= 0.550M . The following reaction occurs and equilibrium is established
A reaction vessel contains these compounds at equilibrium. What will happen if the volume of the container is reduced by 50% at constant temperature.
An inflated balloon has a volume of 0.55 L at sea level (1 atm) and is allowed to rise to a height of 6.6 km, where the pressure is about 0.40 atm.
how many grams of carbon dioxide (CO2) gas at are contained in a volume of 344 liters at STP?
Determine how many grams of oxygen gas would be needed to combine exactly with 13.2 kg of propane (C3H8) gas (the 3 and the 8 are subscripts).
A piece of tin weighing 85.251 g is placed into 41.1cm3 of ethyl alcohol (D=0.798) in a graduated cylinder and it sinks to the bottom . The alcohol rises to 52.8cm3
You have 75.0 mL of a 2.50 M solution of Na2CrO4(aq). You also have 125 mL of a 1.52 M solution of AgNO3(aq). Calculate the concentration of CrO4 2- after the two solutions are mixed together.
Phenol is a weak organic acid with Ka=1.0x10^-10. How many grams of phenol do you need to add to 500. mL of water to make a pH=5.75 solution
the following compounds has the highest boiling point and which has the lowerst boiling point? explain your answer. a- CH3OCH3 b- CH3COOH c- CH3CH2CH3
A particular coal contains 2.5% sulfur by mass. When this coal is burned, the sulfur is converted into sulfur dioxide gas.The sulfur dioxide reacts with solid calcium oxide to form solid calcium sulfite CaO(s)+SO2(g)?CaSO3(s),S(s)+O2(g)?SO2(g)
30.0 mL of water at 24.5 °C was mixed with 40.0 mL of water at 40.0 °C. If the specific heat of water is 4.184 J/g °C and no heat was absorbed by the calorimeter, then the final temperature is _____ °C. (Report to the proper number of significant ..
Assuming no change in volume, How much will the pH of the Acetic acid change? How much will the percent ionization of the acetic acid change
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