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The density of propene at STP is 1.88 g/L. What is the gram molecular mass of propene? The empirical formula of propene is CH2. What is its molecular formula?
What volume of ammonia at 25 °C and 1.5 atm pressure is needed to produce 500 g of urea?
An Ideal gas originally at a temperature T1 and pressure P1 is compressed reversibly against a piston to a volume equal to one-half its original volume, Draw a diagram of the process in the P-V plane.
The fat content in milk can be measured by the extration with hexane. a 50.0g sample of whole milk was mixed with hexane and gently stirred.
How many millilitres of 0.200 M HCl must be added to 50.0 mL of a 0.200 M solution of NH3 in order to prepare a buffer that has a pH of 8.60? Kb of NH3 = 1.8 x 10-5.
Calculate pCO2+ at each of the following points in the titration of 25.00 mL of 0.02022 M CO2+ by 0.03855 M EDTA at pH 6.00.
a) Write the balance equation for the reaction. b) How many moles of O2 are needed to completly react with 4.0 mol of C2H6O? c) If a car produces 88 g of CO2, how many grams of O2 are used up in the reation
How much boiling water would you need to raise the bath to body temperature (about 37c ). Assume that no heat is transferred to the surrounding environment.
a sample of a certain beverage contains 1.00g of tartaric acid, H2C4H4O6. The beverage is titrated with 0.100M NaOH, how many millimeters of base are required to neutralize the tartaric acid.
If your front lawn is 15.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1350 new snow flakes every minute, how much snow (in kilograms) accumulates on your lawn per hour?
according to the law of conservation of mass if the products of a reaction have a mass of 64.0 grams then the total
viniger is made by adding 33 g of acetic acid to 625 g of water what is the percent by mass of acetic acid in the solution of viniger?
A reaction that is second order in one reactant has a rate constant of 4.0 x 10^-2 L x Mol^-1 s^-1 . If the initial concentration of the reactant is 0.380 mol x L^-1, how long will it take for the concentration to become 0.190 mol x L^-1
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