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What is the osmolarity of a solution made by dissolving 25.0 g of the strong electrolyte KCl in 1.0 L of solution?
Pt(NH3)2cl2+h2o yields pt(NH3)2(H2o)cl+cl- has a rate that increases by a factor of 15 and a temeprature that inceases from 25 tp 50 degrees celsius what is the value of Ea?
Chemical reactions and laundry
Magnesium hydroxide is 54.87% oxygen by mass. How much oxygen is in 156 g of the compound? Answer in units of g. 015 (part 2 of 2) 10.0 points How many moles of oxygen is this? Answer in units of mol.
Write the reaction for the hydrolysis of propionyl propionate (an ester) -- that is, the reaction of this ester with water, yielding a carboxylic acid and an alcohol.
A bottle is labeled "Constant-boiling hydrochloric acid, 21.0 percent HCl by mass, density 1.1 g/mL." Calculate the molarity of the HCl solution.
A solution of acetic acid, HC2H3O2, on a laboratory shelf was of undetermined concentration. If the pH of the solution was found to be 2.39, what was the original concentration of the acetic acid
if 69.5 kj of heat is applied to a 1040. g block of metal the temperature of the metal increases by 11.4degc. calculate
Which of the following ionic bonds is expected to be the shortest, based on periodic trends in ionic radii? Cs-I, Na-Cl, Li-Br, Al-O, Na-O
For the D3h point group draw 3X3 transformation matrix for each of the operations of this point group on a set x,y,z coordinate
To 1.00 L of a 0.100 M aquoeus solution of the weak base pyridine C5H5N is added 1.00 ml of 14.0 M NaOH. What fraction of the pyridine molecules in the resulting solution react with water to release hydroxide ions? (Kb C5H5N = 1.7 x 10^-9)
Problem- Arrange each of the following groups in order of increasing standard molar entropy(S) and explain your rationale.
When molten cesium solidifies to Cs(s) at its normal melting point, is (triangle)S positive or negative. Calculate the value of (triangle)Stotal when 15.0g of Cs(l) solidifies at 28.4 degrees C.
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