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The volume of a sample of nitrogen gas initially at STP is decreased and at the same time the temperature is increased. What happens to the pressure of the sample?
a. it increases
b. it decreases
c. it stays the same
d. first it increases, then it decreases
e. there is not enough information to know what would happen
what is the molarity of an aqueous solution containing 360g of glucose in 2.0L of solution.
it absorbs 32.60 kj of heat from its surroundings. what is its final temperature in C (specific heat .9930 J g C for Al)
A saturated solution of BiI3(s) is found to have an I- concentration of 3.96E-5 M. What is the value of Ksp for BiI3?
Plot NO2 versus time, ln NO2 vs time, and 1/NO2 vs time. Which graph yields the best straight line? what is the reaction order with respect to NO2? Briefly explain
what is the global pH change incurred after injection of the HCl? What would the pH change be if this same amount of 1.000 M HCl were put into a gallon of pure water?
Selective precipitation, fractional precipitation, amphoteric precipitate solubilization, competitive equilibrium solubilization: anion protonation, competitive equilibrium solubilization
Helium= ? g/mL Neon= ? g/mL Carbon monoxide= ? g/mL Nitrogen monoxide= ? g/mL If the density of air at 25 degrees C and 1.00 atm is 0.00117 g/mL, will any of the balloons float in this air? Which ones?
Draw the Major Organic Products that will form when (E)-3-methyl-3-hexene reacts with ozone
A compound is constituted by mass of 22.6% phosphorus, the rest being chlorine. Given that a volume of 307 mL of the gas has a mass of 1.55 g at 25 °C and 90 kPa, find the molecular formula for this compound
chlorobutenedioic acids dehydrochlorinate to give acetylene dicarboxylic acid. The Z reacts about 50 times faster
Calculate w (in kJ) when 376 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 335 K:
It takes 46.0 to raise the temperature of an 11.2 piece of unknown metal from 13.0 to 25.0. What is the specific heat for the metal?
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