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A solution is created with 50.0g of KNO3 MM = 101.1g/mol in 150.0g of the water MM=18.0g/mol . The density of the mixture is 1.25g/cm3. Determine the following:
a.) Mass % of KNO3
b.) Mole fraction of water
c.) Molality of the solution
d.) Molarity of the solution
Draw the Newman projection formulas for the conformations of 2- methylbutane that are obtained by looking down the C2-C3 bond. Rank then oorder of relative stability
Calculate the molarity (M) of a solution prepared by dissolving 16.5 g of HI in enough water to make 3.25 L of solution.
2HCrO4 ^- Cr2O7 ^2- + H2O Determine concentrations of Dichromate ion and Bichromate ion if we add .1mol/L of bichromate ion and no dichromate ion once reaction reaches equilibrium.
What should the solubility of a compound be in a solvent it is to be recrystalized from?
Determine whether or not the mixing of each of the two solutions indicated below will result in a buffer: 75.0 mL of 0.10M HF; 55.0 mL of 0.15 M NaF
For the following reaction, Kp = 1.16 at 800.°C. CaCO3(s) CaO (s) + CO2 (g) If a 25.0-g sample of CaCO3 is put into a 10.2-L container and heated to 800.°C, what percent of the CaCO3 will react to reach equilibrium? A) 23.7% B) 53.8% C) 13.4% D) 1..
The oxygen sample burned in sodium to form sodium oxide, Na2O - write a balanced equation for the reaction.
Calculate the potential of the cell below. The absorbance of the solution of the solution in the Nickel cell is 0.347 in a 2 cm cell. (The molar absorptivity of Ni(en)2 (2+ charge) is 3,500, the fractional dissociation of en = 1.16 x 10^-4, kf=3.0..
a calorimeter consists of metal parts with a heat capacity of 850.0 j k-1 and 1100 g of oil with a specific heat of
If O2 is collected over water at 40.0 Celsius and a total pressure of 737 mmHg, what volume of gas will be collected for the complete reaction of 23.92 g of NiO?
A student dehydrated 10.0 g of 2-methyl-2-butanol with %50 sulfuric acid and obtained 6.50 g of products. Calculate the theoretical yield and the percent yield.
Calculate how much water must melt in order to reach exactly 0 degrees celsius at thermal equilibrium. b) Calculate the entropy changes for ice, liquid water and the total entropy change.
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