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Question- Why does a heavier molecule like O2 compared to N2 move at a lower average velocity? Temperatures are the same.
I know 02's molecular mass is higher but why else?
Provide your answer in scientific notation
A chemist wishes to determine the concentration of CrO42- electrochemically. A cell is constructed consisting of a saturated calomel electrode (SCE) and a silver wire coated with Ag2CrO4. The ° value for the following half reaction is +0.446 V rel..
a vessel contains 0.90 g liq h2o in equilibrium with water vapor at 30c. at this temperature the vapor pressure of h2o
calculate in kj the standard enthalpy change for the hydrogenation of ethyne acetylene to ethaneh-cequivc-hg 2h2g
Will turn into a liquid at room temperature. Off the Periodic Table pick three solid elements that would float when placed in mercury as well as three elements that would sink when placed in mercury.
a sample of a mixture of kclo3 and kbr weighing 7.0950 g is heated in the presence of a small amount of mno2 which acts
A gas is confined to a cylinder under constant atmospheric pressure. When 419 J of heat is added to the gas, it expands and does 103 J of work on the surroundings. What is the value of delta H for this process. And what is the value of delta E for..
A feed containing 15% by weight of solids is to be concentrated to 40 % solids using a double effect backward feed evaporator. The first effect is heated by steam at 413 K.
If 67.0 mL of 0.119 mol/L NaOH(aq) and 35.0 mL of 0.193 mol/L HA(aq) are mixed, then what is [HA] at equilibrium. Assume that HA is a weak monoprotic acid with pKa=6.23 at 25oC. Give your answer with three significant figures
Why are the bond angles for CH3CH2CH3 approx. 109 degrees. Why is it Tetrehedral when it has 10 electron domains
How much heat is gained by copper when 51.8 g of copper is warmed from 15.5*C to 76.4*C? The specific heat of copper is 0.385 J/(g x *C)
What volume of hydrogen gas can be produced by reacting 3.86 g of aluminum in excess of hydrochloric acid at 21 degrees Celsius and 102 kPa? The reaction is:
D Radical-chain polymerization of CH2=CHOCOCH3, followed by base-catalyzed hydrolysis.
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