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3H2(g)+N2(g)?2NH3(g)
1 - How many grams of H2 are needed to produce 13.03g of NH3?
2 -How many molecules (not moles) of NH3 are produced from 1.52×10?4g of H2?
5000 joules of energy are added to 108 grams of silver, Ag, at 20°C. What is the final temperature of the metal? (the specific heat of silver is 0.235)
what mass of ammonium chloride can be added to 100 grams of water at 20 degrees celcius before the solution becomes saturated?
how many milliliters of 0.0850 m NaOH are required to titrate each of the following solutions a) 40.0 ml of 0.0900 m HNO3 B)35.0 ml of 0.080 m HC2H3O2 c) 50.0 ml of a solution that contains 1.85 g of HCl per liter.
Calculate the osmotic pressure at 25°C of an aqueous solution of 1.00 g/L of a protein having molar mass=2.50×104 g/mol.
A solution containing 0.750 g of an unknown substance in 30.0 g of cyclohexane was found to freeze at 3.1 C. What is the molar mss of the unlown substance?
Determine the mass of propylene glycol neded to substitute one gallon of ethylene glycol and also find out the volume of propylene glycol, required to get the same antifreeze protection as one gallon of ethylene glycol.
Calculate the specific heat capacity of this sample of mercury if The amount of energy required to heat 2.00 grams Hg from 50 degrees C to 85 degrees C is 9.87 J.
What is the melting range of a mixture of both trans-Cinnamic and urea?
A cell that uses bromine to oxidize hydrogen H^+ under standard conditions at 298 K has a positive potential.
Which sample contains the largest number of molecules?
What is the maximum amount of silver chloride that can be formed? IN GRAMS b.What is the FORMULA for the limiting reagent?
The below table lists pressure and volume measurements for air in a cylindrical piston of an air compressor. The variables may be assumed related by: PV^k=C
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