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a typical barometric pressure in kansas city is 740 torr what is this pressure in atmospheres in millimeters of mercury
if the caffeine concentration in a particular brand of soda is 313 mgoz drinking how many cans of soda would be lethal
would you expect silver nitrate to react with sodium chloride why or why not write the net ionic equationand why do
aluminum and oxygen combine in a mass ratio of 900 to 800 if a flashbulb contains 54 10-3 grams of aluminum what
1 using avogadros number calculate the number of atoms in 0005 kilograms of carbon2 if there are x atoms in 5 grams of
a mole of carbon atoms has a mass of 12 grams and a mole of magnesium atoms 24 grams what is the mass ratio of a single
a 0245-l flask contains 0467 mol co2 at 159 degc calculate the pressurea using the ideal gas lawb using the van der
how much heat is released upon converting one mole of steam 180 g from 1000 c to water at 250 chow much heat is
propane has a normal boiling point of -420c and a heat of vaporization deltahvap of 1904 kjmol what is the vapor
classify each of the following as ionic covalent molecular or metallic solids sn s8 se sio2 and
the subscripts in the chemical formula for a molecular compound are not always in the lowest ratio using what you have
suppose a certain pipet delivered 129 mg of a solution at 20 degc if the solution had a density of 10359 gml what
you have been given a 20000 ml canister containing an unidentified gas after accounting for the mass of the container
manganese metal is produced from the manganese iii oxide mn2o3 which is found in manganite a manganese ore the
equationsthe heat energy associated with a change in temperature that doesnbspnotnbspinvolve a change in phase is given
what is considered to be the acceptable error for standard high school and college
1 uranium is distributed in a form called yellow cake which is made from uranium ore in the second step of the
assignmentproblem 1express the following sets of numbers using interval notationxx le -2 or x ge 0problem 2find the
parameters in a model can interact with each other so that the sensitivity of the model to one parameter depends on the
you have been asked to use your modeling skills to make recommendations for how to increase the population size of a
in the fenders blue simulation you explored in exercise 2 of this lab hot and bothered with periodic fires turned on
question1 what is the ratio of the average kinetic energy of so2 molecule to that of an o2 molecule in a mixture of two
calculate the amount of copper in moles in a 339-g pure copper
question what is approximate mass of a single piece of shot assuming all the pieces have same
1 what is the difference between soil porosity and permeability2 what is cation exchange capacity and how does it