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220 l vessel contains 510 g of a gas at 100atm and 270degca compute the density of the gas in grams per literb define
in a research 2060 g of silicon dioxide is reacted with 3488 g of hydrogen fluoride gas according to the equationsio2
if a student prepares a solution of carbonate-free naoh ahead performing a rough titration the student discovers the
explain what are the names mass number number of proton number of neutrons number of electron atomic number atomic
a sample of o2 gas occupies a volume of 314ml at 570 c and 197 atmospheres explain what volume wills it occupy when the
explain the rate of effusion of oxygen gas is twice the rate of effusion of an unknown gas under the same conditions of
if bromine has two naturally occurring isotopes the average mass of bromine is 79904 u if 5054 of bromine is found as
lithium has two stable isotopes with masses of 601512 u and701600 u the average molar mass of li is 6941 u explain what
if the computer writes electron configurations in the form for fe for example ar4s23d6 which we would write ar4s23d6
explain a metal weighs 2166 g determine the volume of that metal that is150 cm long0550 cm wide and 0250 cm
the compound ab is in equilibrium with a as well as b- in a specific solvent at a given temperature if the equilibrium
the atmospheric pressure on mars is about 200 torr depending on the location express this pressure in atm psi and
a solution of 200 g of para-dichlorobenzene a clothes moth repellant in 500g of cyclohexane freezes at 105 deg c
100 ml of 2 hcl is titrated with 25 mnaohdetermine the ph of the solution after adding 50 ml of basedetermine the ph of
1 explain what types of chemical compounds describe trimyristin and its soaps2 explain what happens to the trimyristin
compute the frequency in hertz of the photon that is emitted when an electron falls from level n10 to level n5 in the h
a student followed the procedure of this experiment to find out the caloric content of a planters cocktail peanut the
if it takes 348 x 10-19 j of energy to eject an electron from the surface of a certain metal compute the longest
explain with which food label value will you compare your experimental result when computing the percent difference in
if an fm radio station broadcasts at a frequency of 936mhz 1mhz106 hz or cycles per second explain what is the
explain which of the subsequent coordination compounds have geometric isomers note that the geometry of the
explain what is the wavelength of light that is emitted when an excited electron in the hydrogen atom falls from n 5
if the rate constant of a first order reaction is 487 x10-5s-1 at 15 deg c compute the rate constant at 80 deg c if the
a certain anesthetic contains 649 percent c 135 percent h and 216 percent o by mass at 120degc and 750 mmhg 100 l of