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Calculate w and ?U when 1 mole of xenon gas assumed ideal under goes adiabatic expansion from 27?c to 127? assuming(heat capacity of constant volmue=12.5)
Find the mass of sodium required to produce 5.68 L of hydrogen gas at STP from the reaction described by the following equation: 2 Na + 2 H2O ® 2 NaOH + H2
Suppose you started with 2.6 M of HCN(aq), what would be the molar concentration of HCN(aq) at 20 days?
A 12-liter tank contains helium gas pressurized to 160. What size tank would be needed to contain this same amount of helium at atmospheric pressure 1 ATM.
What is the pH of 0.346 M diethylammonium bromide, (C2H5)2NH2Br. The Kb of diethylamine, (C2H5)2NH, is 6.9 x 10-4
Determine the mass percent of CH3COOH in this solution if density of vinegar is 1.01 g/mL? Also calculate mole fraction of acetic acid in this solution and molality of this solution?
Question1 : If a sample of water from a pond is to be analyzed for whatever chemicals it may contain (including organic compounds and metal containing species), give a very brief, but specific description of the protocol that would be best used, i..
What is the recommended daily allowance (RDA) of calcium, in mg, assuming a 2000 calorie diet for a 25 year old adult? A student carries out part 1 of this experiment and finds the equation for his/her calibration curve to be
Explain the importance of a universal standard in measurement
A process involves the performance of electrical work in the amount w' on a system. Show that if the process is carried out
You are given a box containing at equilibrium at 1000 K 0.102 moles/liter NH3, 1.03 moles/liter N2, and 1.63 moles/liter H2 for the reaction N2(g) +3 H2(g)-->/
In a reaction between pure acetic acid and sodium bicarbonate, 10.1 grams of sodium bicarbonate was added to 21.0 mL of acetic acid. Which reactant is the limiting reactant in this reaction?
a 350.0 ml sample of oxygen gas was collected over water at a temperature of 25.0ordmc and 740.0 mm hg. how many moles
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