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An empty beaker weighs 41.19 g. When it is completely filled with water (density = 1.0 g/mL), the beaker weighs 92.92 g.
(a)How many grams of water have been added to the beaker? g(b)What is the volume that the beaker can contain? ml
A small spherical virus has a molecular weight of 1.25x10^6 g/mol and a diameter of 100 Angstrom. Calculate the intrinsic viscosity in units of cm3/g of an aqueous solution of this virus.
What atomic or hybrid orbitals make up the sigma bond between I and I in triiodide ion, I3-?. What is the approximate I-I-I bond angle?
How many grams of aluminum metal and how many liters of chlorine gas can be produced by passage of 4.8 amp of current for 2.3 hour under standard conditions (25?C and 1 atm pressure)?
A sample of a gas in a piston/cyclinder apparatus occupies 30.2 mL at 1.08 atm and 22.2°C. If the volume of the sample is increased to 67.3 mL and the temperature changes to 30.9°C, what is the new pressure, in atm, of the sample
How much of an epoxy that has a "weight per epoxy" of 435 in 80% solid solution is needed for the same reaction?
Calcium fluoride CaF2 is an insoluble salt. The Ksp is 3.4 x 10^-11. Calculate the molar solubility of calcium fluoride.
Glyoxyl, used in textiles; maleic acid, used to retard oxidation of fats and oils; and acontic acid, a plasticizer, all have the same empirical formula, CHO
The heat of combustion of cyclobutane is 650.3 kcal/mol. How much energy is released during the complete combustion of 450 grams of cyclobutane.
What is the maximum concentration, in mol/L and mg/L, of Cu^2+ and Zn^2+ in a solution that contains both ions if the pH is (a) 10.00, (b) 11.00, (c) 12.00
When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are formed.
What is the most appropriate temperature for storing your protein between purification steps? a) Room temperature b) 4° C c) -20° C d) -80° C
Background: If aqueous NaOH is added to tert-butyl chloride acetone solution, initially the solution is basic due to the hydroxide ions from the NaOH.
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