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A chemical compound has a molecular weight of 132.05 g/mole. 1.908 grams of this compound un¬derwent complete combustion under constant pressure conditions in a calorimeter with a heat ca¬paci¬ty of 3580 J oC-1 (metal shell, water substitute a special oil, thermocouple, etc). The tem¬pera¬ture went up by 12.95 degrees. Calculate the molar heat of combustion of the compound.
What are the direction and magnitude of the velocity of plane 1 relative to plane 2? What is the Degrees? ° north of east
Enough of a monoprotic acid is dissolved in water to produce a 0.0113 M solution. The pH of the resulting solution is 6.43
With a solution in them connected by a liquid salt bridge junction filled with KNO3. In one solution you have a graphite electrode that is connected with a wire to a copper electrode in the second soution. The soution in contact with the graphite ..
Compute the average decomposition rate of the organic acid - Average decomposition rate of the organic acid
These 3 solutions including 2.362 g of Rb2S, 1.635 g of NaClO 4 , and 0.796 g of CuCl 2 , respectively are combined together? now calculate what would be the mass of this precipitae?
A nitric acid solution containing 71% HNO3 (by mass) has a density of 1.42g/mL. how many moles of HNO3 are present in 1.00L of this solution.
The pH of a sample of rain is found to be 3.2. Calculate the percentage of HSO4- that is ionized in this sample, given that the acid dissociation constant for the second stage of ionization of H2SO4 is 1.2E-2.
When given a problem with an aqueous solution containing Na3PO4 and you need to find the boiling point of the solution only knowing the solution is 18.7% by mass Na3PO4 and the Kb for water is .512 It also says to consider if the solute is an elec..
Propose a structure for Compound X, which has M+ = 120 and (M + 2) = 122 of approximately equal intensity in its mass spectrum and has the following 13C NMR spectral data
Using an aqueous solution of Ba(NO3)2 the density of this solution is measured to be 3.640g/ml and this solution containing barium nitrate mole fraction of 0.01704. compute the molarity of this solution?
The unit cell of platinum has a length of 392.0pm along each side. Use this length and your answer from part a (14 particles in unit cell, coordination #=12, 4 unique particles per unit cell) to calculate the density of platinum metal in kg/m3
How many grams of sodium lactate (NaC3H5O3 ) should be added to 1.46 L of 0.150 M lactic acid (HC3H5 O3, Ka = 1.4 x 10-4) to form a buffer solution with pH = 4.12
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