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A 195 mg sample of a nonelectrolyte isolated from throat lozenges was dissolved in enough water to make 10.0 mL of solution at 52 degrees Celsius. The osmotic pressure of the resulting solution was 4.80 atm. Calculate the molar mass of the compound.
Gold miners then react the basic aqueous product solution from part C with Zn dust to get gold metal. Write a balanced redox reaction for this process.
In which of these molecules or ions does the presence of nonbonding electron pairs produce an effect on molecular shape, assuming they are all in the gaseous state. Check all that apply. SiH4, PF3, HBr, HCN, SO4
Determine whether A or b is the correct formula and then use the correct formula to estimate the density of a liquid mixture containing 60 wt % acetone, 25 wt % acetic acid, and 15 wt % carbon tetrachloride
Determine how many grams of each of the following solutes would be needed to make 3.00 x 10^2of a 0.100 M solution.
The compound KClO3 decomposes according to the following equation: 2KClO3 --> 2KCl + 3O2 a) What is the mole ratio of KClO3 to O2 in this reaction? b) How many moles can be produced by letting 6.0 moles of KClO3 react based on the above equation?
The following molecular equation represents the reaction that occurs when aqueous solutions of silver nitrate and aluminum chloride are combined.
Assume that the amino acids with ionizable side chains have the following pKas: Asp 3.65; Glu 4.25; His 6.0; Lys 10.53, Arg 12.48; Cys 8.18; Tyr 10.07. Also Assume that the a-amino group has a pKa of 9.62, and the a-carboxyl group has a pKa of 2.3..
write balanced chemical equation and determine the molecular weight of the reactants.1.within the cylinders of a cars
Determine the molality of a solution of ethanol dissolved in methanol for which the mole fraction of ethanol is 0.27.
A 0.0490 molal aqueous NaBr solution freezes at -0.173°C. What is its apparent percent dissociation in this solution? Kf = 1.86°C/m for water. NaBr -> Na+ + Br-
What weight of sulfuric acid will be needed to react completely 35.5g of ammonia in the production of ammonium sulfate.
The mass of water in the inner water bath is 1.376*10^3g. The temperature of the calorimeter and its contents rises 3.11K as a result of this reaction. Calculate the calorimeter constan.
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