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Data Sheet unknown identification code determination first second third mass of flask, boiling stone, foil cap, and unknown after cooling, g 17. 69 mass of flask, boiling stone, and foil cap, g 60 . 69 9 mass of unknown, g water bath temperature at complete vaporization, C 10 2 C water bath temperature, K 373 k barometric pressure, in. Hg 760 mmig Iatm barometric pressure, atm 10 M L volume of flask, mL D OIL volume of flask, L density of vaporized unknown, g L-1 molar mass of unknown, g mol-1 average molar mass of unknown, g mol accepted molar mass of unknown, g mol-1 percent error, %
one way to judge the accuracy of your calorimeter is to compare the results for a known system. examine you error of
Both the meta- and para- forms of phenylene diamine are used in the production of Kevlar and Nomex, respectively. Why is a corresponding material with similar properties not made from ortho-phenylene diamine, and why is the ortho-form of the diami..
0.032 moles of balls, what are the steps the manager would follow to determine how many balls there are and calculate the final total.
Calculate the theoretical amount of NH4NO3 that would be required to change the temperature of 50 ml of water from room temperature 20 C to 5 C.
What mass of magnesium chloride is needed to react with 145 g of silber nitrate accourding to the following reaction: MgCl2(aq)+2AgNO3(aq) -> Mg(NO3)2(aq) + 2AgCl
Determine the concentrations of K2SO4, K , and SO42- in a solution prepared by dissolving 2.11 × 10-4 g K2SO4 in 2.00 L of water. Express all three concentrations in molarity.
A 2.89 g sample of solid calcium carbide (CaC2) reacted with water to produce acetylene gas (C2H2) and aqueous calcium hydroxide.
If a mixture of gases contained 78% nitrogen at a pressure of 984 torr and 22% carbon dioxide at 345 torr, what is the total pressure of the system
What is the internal energy of an ensemble of 1 mole of particles having two non-degenerate electronic energy levels separated by 1000cm^-1 at 1310K.
what differences would you expect to observe. Would the order of reaction change with respect to the dye? Would the rate constant change
What volume of a 0.670 M NH4I solution is required to react with 901 mL of a 0.680 M Pb(NO3)2 solution?
a flask contains 22.5 g of an unknown liquid initially at 14.0oc. after 2.34 kj of heat are added to the liquid its
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