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A radioactive substance has a half-life of 46.5 minutes. How many grams of the radioactive substance will remain in a 822.4g sample after four hours have elapsed?
the first order rate constant for the decomposition of n2o5 to no2 and o2 at 70 degree celsius is 6.82 x 10-3 s-1.
write out the balanced net ionic equation for the reaction of hydrochloric acid
what mass of carbon tetrachloride,CCl4, must be vaporized at 100 degrees celsius to fill a flask with a volume of 275.0 ml when the atmospheric pressure is 753.9 torr. If the experiment is repeated at the same temperature but a greater atm pressur..
What is the rate constant for the reaction at 85°C?
a sample of gas with an initial volume of 33.0 l at a pressure of 765 mmhg and a temperature of 325 k is compressed to
Gaseous indium dihydride is formed from the elements at elevated temperature: In(g)+H2(g) (reactions goes both ways=double arrow) to InH2(g) with Kp=1.48 at 973 K
A 0.150 M Na2SO4 Has [Ag^+] = 9.7x10^-3 M. What is the value of Ksp for Ag2SO4 obtained with these data
determine the mass of a mixture of 1.33x1024 formula units of sodium sulfate 1.500 moles of water and 3.77g of silver
what purpose does a 1-cm layer of anhydrous sodium sulfate in the apex of the funnel serve while transferring the dichloromethane extract into the round-bottom flask?
According to the VSEPR theory, the electrostatic repulsion between electron pairs surrounding an atom causes. An electron sea to form
Draw both products of bromination of cholesterol which you obtained. What is the stereochemical relationship between them
how much heat (in KJ) is required to warm 10g of ice, initially at -10 degree celsius, to steam 110 degree celsius?
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