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[BrO- ]initial is 0.86 M. 65 seconds later [BrO- ] is 0.19 M. What is the rate of change of [BrO- ] in M/s? (The brackets, [ ], indicate concentration, that is, molarity (M) or moles/liter.)
What is the heat change in J associated with 74 g of gaseous butane at 91 oC changing to solid at -170 oC? c(butane) (gas) = 2.31 J/ (g.K) c(butane) (liq) = 1.65 J/(g.K) c(butane) (s) = 1.32 J/ (g.K) ?Hfus(butane) = 6.885 kJ/mol
What is the balanced chemical equation for the reaction used to calculate Delta H degrees F, of MgCO3(s)
Calculate the volume in liters occupied by carbon monoxide in a room that measures 12.67 m long, 14.87 m wide, and 16.96m high at this concentration.
Which of the following statements are correct concerning the comparison of the physical properties of pentane and diethyl ether
Calculate the grams and milliliters corresponding to 100 mmol of t-amyl alcohol, and the theoretical yield of t-amyl chloride.
How many lone pairs of electrons are there in a molecule of crotononitrile?
Compute the number of electrons in a flake of pure gold valued at $0.5. Assume that the price of gold is $1426.0/troy oz.
Protons can be accelerated to speeds near that of light in particle accelerators. Estimate the wavelength (in nm) of such a proton moving at 2.90 X 108 m/s. (Mass of a proton=1.673 X 10-27 kg)
A blend of polyethylene and PVC contains 10 wt °/. PVC. What is the molecular percentage of PVC
A certain mixture of He and Ne in a 356-cm3 bulb weighs 0.1480 g and is at 20oC and 748 torr. Find the mass and mole fraction of He present.
a nugget of pure gold of 4.90 grams absorbed heat of 270 joules. determine the final temperature of the au if the
Calculate the heat produced by a 100-Watt lamp in one day. If this heat was utilized to heat one liter (~ 1 kg) of water at 25 0C, what will be the final temperaute
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