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if a cubic unit cell for a binary metal oxide mxoy has metal ions at the body position and all corner positions and
when a particular solid dissolves in water the solution gets coldernbspwhat can you say about the relative magnitudes
write the balanced equation for the reaction of nitrogen gas with hydrogen gas to form ammonia
if the half-life of an element is 5 days and 100 milligrams of that element is initially available how many milligrams
a cell contains gas at 5300 pa and a machine at one point the volume of the box is 39 m3 the machine is turned on
what quantity of heat is required to change the temperature of 300g of water at 100 degrees celsius to 250 degrees
1 if the pressure of a gas is 81 atm at 2073 k in a closed container what is the pressure in atm if the temperature is
this a question from chemistry grade 12 about energy transformations and electricityin point form outline the process
mercury the only metal that exists as a liquid at room temperature melts at 2343 k convert this melting point to
use standard heats of formation delta ho and standard entropies delta so to calculate delta go for the following
most intravenous iv solutions used in hospitals arenbspisotonic solutions which exert the same osmotic pressure as body
when pu -244 decays to u-240 and he-4 the radioactive decay is referred to as alpha decay indicate how many neutrons
if i have a solution of copper sulfate and water with a molarity of 5 with a volume of 12 liter and 25 moles of copper
a sample of ammonia nh3 is completely decomposed to nitrogen and hydrogen gas calculate the partial pressure of
the average kinetic energy of uf6g is 498 kjmol at some temperature what is the average kinetic energy of sf6g at that
considering the impact of co2 only how does the ph of soda water change as it left on the counter and becomes flat
a 350 ml sample of 0150 m acetic acid hc2h3o2 is titrated with 0150 m naoh calculate the ph after 345 ml of naoh has
an unknown compound contains only c h and o combustion of 250 g of this compound produced 568 g of co2 and 233 g of
choose in which direction the following reaction would be spontaneous calculate eo delta go and k for the spontaneous
calculate delta go for the following reaction at 25 degrees celsius what is k of reaction what type of reaction is it
1 a galvanic cell uses the following solutions 15 m cr2so43 in 08 l of water and 08 m auno33 in 12 l of water write the
an artifact classified asnbspwood bristlecone pine found in a site atnbsptree ring usa is found to have anbsp14c
a flask contains a 03437 m solution of potassium hydroxide the solution is titrated and reaches an equivalence point
1 what would the hydrogen ion concentration be if the poh was 42 what would the hydroxide ion concentration be if the
calculate the ph of the followingh 1 x 10-3 moh- 1 x 10-5 mh 1 x 10-7 mh 1 x 10-13 moh- 1 x 10-0 mcalculate the