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A compound is found to contain 49.5% carbon, 5.19% hydrogen, 16.5% oxygen, and 28.9% nitrogen. Its molecular mass is 194.2 g/mol.
What is its empirical formula? What is its molecular formula?
Explain what each of these formulas tells us about the molecule.
From the solubility data given, calculate the solubility products for the following compound Ag3PO4, 6.7 x 10^-3 g/L
which solution would show the greatest change in pH upon the addition of 15.0 mL of 1.0 M HCl to 1.0 L of each of the following solutions
Problem- At 850 K, The value of the equilibrium constant Kp for the ammonia synthesis reaction is 0.4250. If a vessel contains an initial reaction mixture in which [N2] = 0.0150 M, [H2] = 0.0250 M, and [N2H2] = 0.000100 M, what will the [N2H2] be ..
Calculate the molar solubility of PbCl2 in a 0.20 M NaCl solution. The Ksp of PbCl2 = 1.7 x 10-5. Can any assumptions be made to simplify this calculation
The partial pressure of CO2 in the atmosphere is 3.9x10-4 atm. When drinking soda is put in a can, assume that there is 2.0 atm CO2 in the 2.0 mL gas space above the soda. (The actual CO2 pressure varies with type of soda).
Assume that 50.00ml of 0.100M HCl was added to 125ml of 0.100M sodium acetate. Is the resulting solution a buffer? Why or why not? Calculate the pH of the resulting solution.
A block of metal has a width of 3.2cm, a length of 17.1cm, and height of 3.3cm. Its mass is 1.5kg. Calculate the density of the metal.
the heat of vaporization of water is 40.66 kjmol. assuming sweat is 100 water how much heat is removed from your body
What is a difference between atoms and molecules?
How many bananas would be needed to power a 100 W light bulb. Your solution must begin with a calculation of the amount of 40-K in a banana and include the half-life and the decay energy.
What is the solubility of MnS, in grams per liter, in a buffer solution that is 0.115M HC2H3O2 - 0.505 M NaC2H3O2? For MnS, Kspa=3x10^7.
A sample may contain any or all of the following ions: Hg22+, Ba2+, and Mn2+. No precipitate formed when a solution of NaCl or Na2SO4 was added to the sample solution
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