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A chemistry lab experiment requires 25.2 g of silver nitrate. How many grams of a 15.5% by mass solution of silver nitrate should be used?
List the different strengthening mechanisms and identify the ones that would not apply to pure elemental materials
What is the molar mass of a gas if 0.250 g of the gas occupies 215 mL at 618 mmHg and 30.0°C?
An air sample contains 0.034% . If the total pressure is 765 , what is the partial pressure of
A 1-L flask is filled with 1.30g of argon at 25C . A sample of ethane vapor is added to the same flask until the total pressure is 1.00 atm. What is the pressure of argon Par in the flask. What is the partial pressure of ethane, Pethane, in the fl..
The conductivity of a solution can be measured easily with a probe that dips into a solution and a meter that reads out in siemens (1 siemens = 1 ohm-1). The equivalent conductance,
A reaction has an activation energy of 110 kJ/mol and a rate constant, k=1.2 x 10^-12 s-1 at 0?C. At what temperature will the rate constant k=5.1 x 10^-7 s-1.
stilbene isomerizes to isostilbene when dissolved in benzene with an appropriate catalyst. isostilbene also isomerizes
A sample of gas at 0 celsius has a pressure of 760 mm and a volume of 2 liters. When the volume is increase to 8 liters, what will new pressure be at 0 celsius
A 17.6 g sample of an alloy at 93.0°C is placed into 50.0 g of water at 22.0° C in an insulated coffee-cup calorimeter with a heat capacity of 9.2 J/K. If the final temperature of the is 31.1°C, what is the specific heat capacity of the alloy
You perform column chromatography on a mixture of reaction products which shows two spots on TLC. However, under the column conditions you chose those two compounds do not separate.
methane and hydrogen sulfide form when 36g H2 reacts with carbon disufide. Calculate the percent yield if the actual yield of CH4 is 69.8
the reaction must progress forward to attain equilibrium. The richer a reaction mixture is in product the higher its Q value is. The value of K does not change as a reaction progresses toward equilibrium.
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