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Gas A has a density of 0.20 g L-1 as well as gas B has a density of 0.80 g L-1, both at the same specific temperature and pressure. Which gas wills diffuse faster? Briefly define
a runner generates 418 kj of energy per kilometerfrom the cellular oxidation of food. the runners body mustdissipate
How many moles of urea (60. g/mol) must be dissolved in 71.6 g of water to give a 2.4 m solution
a sample has a mass of m1g that contains 2 radioactive elements 20 of element one and 80 of element 2 with molar masses
Find the rate of the reaction - What is the rate of the reaction?
What is the pressure inside a system when the system-side column in an open mercury manometer is 75.0 mm lower than the atmosphere side when the atmospheric pressure is 735 mm Hg.
The heat of solution of ammonium chloride is 15.2 kJ/mol. If a 6.134 g sample of NH4Cl is added to 65.0 mL of water in a calorimeter at 24.5°C, what is the minimum temperature reached by the solution?
If the recorded value of the unknown sample in her lab report was 22.5 g, what was the actual value of the sample
Calculate the heat required (kJ) to convert 25.0 g of C2Cl3F3 from a liquid at 5*C to a gas at 82*C
A 2.00 g sample of silver (Ag) was heated with excess sulfur (S) to produce 2.30 g of a "silver sulfide". Calculate the empirical formula of this sulfide, AgxSy, where x and y are the smallest whole-number moles of Ag and S, respectively. (remembe..
what is the wavelength of the line in the Balmer series of hydrogen corresponding to the transition for n=5 to n=2? the constant for Balmer's equation is 3.2881*10^15 s-1
50.0000 g of a compound showed that it contained 12.7520 g C,3.2105 g H, and 34.037 g S. The molecular weight of this compound was determined in a seperate expierment and found to be 94.19u.
a proton in a linear accelerator has a de broglie wavelength of 117pm. what is the speed of the
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