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which of the following accounts for the unusually high boiling point of water?
the density of waterthe hydrogen bonds in waterthe molar mass of waterthe surface tension in waterthe specific heat of water
Find the ?H for the reaction below, given the following reactions and subsequent ?H values: Zn(s) + 1/8S8(s) + 2O2(g) ? ZnSO4(s) Zn(s) + 1/8S8(s) ? ZnS(s)
The mixture was analyzed spectrophotometrically and found to be 1.84*10^-3 M in I3-. Calculate the molarity of I3- in the original sample
How many calories are required to heat 25.0 g of platinum (specific heat capacity = 0.032 cal/g.K) from 24.5 oC to 75.0 oC?
Trees in cold climates may be subjected to temperatures as low as -60 C. Estimate the concentration of an aqueous solution in the body of the tree that would remain
to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
Calculate: a. kg of pressed beans from stage 1 b. kg of extracted meal from stage 2 c. kg of final meal & wt% protein of it ans: 8723 kg, 8241 kg, & 7816 kg and 44.8 wt% protein.
The system H2 (g) + I2 (g) ?? 2 HI(g) is at equilibrium at a ?xed temperature with a partial pressure of H2 of 0.200 atm, a partial pressure of I2 of 0.200 atm, and a partial pressure of HI of 0.100 atm.
Calculate What will be the volume of this gas sample at standard atmospheric pressure and
A certain laser uses a gas mixture made up of 9.00 g HCL, 2.00g H2, and 165.0g Ne. What pressure is exerted by the mixture in a 75.0 L tank at 22 degree C?
How many grams of dry NH4Cl need to be added to 1.80 L of a 0.800 solution of ammonia, NH3, to prepare a buffer solution that has a Kb of 8.87? for ammonia is 1.8E-5.
The vapor pressure of benzene,C6H6 is 40.1mmHg at 7.6C. what is its vapor pressure at 60.7C? The molar heat of vapotization for benzene is 31.0kg/mol
Wriite an equation for a substitution reaction between 2-bromopropane and potassium iodide. In this case, do not include the state
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