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cyclopropane gas is 857 c and 143 c h by mass and has a density of 171 gl at 755 mm hg and 25c a what is the molar
aa 200 g sample of a gas sx6 has volume of 3295 cm3 at 100 atm and 20 c what element is x b what is the density of
how many moles of air are there in a flask with a volume of 125ml if the pressure is 745 mm hg and the temperature is
at 25degc hydrogen iodide breaks down very slowly to hydrogen and iodine ratekhi2 the rate constant at 25degc is 24
an arrhenius plot ln k vs 1t for a second order reaction produced a straight line with a slope of -681e03 k what is the
the helium ion he has energy levels similar to those of hydrogen and are given by the equation en -524816n2 kjmolea
calculate the binding energy in j and the nuclear binding energy per nucleon of 107- 47 ag 1069051 amua nuclear binding
rewrite the following unbalanced equations changing them into balanced net ionic equations assume that all reactions
deduce the numerical value of x in the formula mocox explain the rationale for your chosen value of
what is the a molality b freezing point c boiling point of a solution containing 1000 g of ethylene glycol c6h6o2 in
the formula conh35co3cl could represent a carbonate or a chloride write the two formulas draw the two structures and
a chemistry lab experiment requires 252 g of silver nitrate how many grams of a 155 by mass solution of silver nitrate
identify the qual i cations that is are confirmed present in a test solution as a result of a bronsted acid-base
a 8046 gram sample of impure bacl2 2h2o weighed 7082 grams after it was dried at 200 degrees c for two hours to drive
calculate the percent purity of a sample of impure h2c2o42h2o if 4006 grams of this material requires a titration with
one mole of an ideal gas with a volume of 25 l and a pressure of 50 atm is allowed to expand isothermally into an
a certain liquid has a normal boiling point of 801oc and boils at 628oc when the pressure is reduced to 445 torr what
find the terms that can arise from the following configurations in each case identify the ground term lowest energy
fats can be either optically active or inactive depending on their structure draw the structure of an optically active
two liters of a buffered solution are created from 045 m hc2h3o2 ka 18 x 10-5 and 036 m nac2h3o2a what is the ph of
your friend brings you a 150 m sample of honh3cl and wants yo know the ph you politely ask for the ka of the acid and
the solubility of zinc oxalate is 79 x 10-3 exponential 3m at 18 degrees celsiuscalculate its kspfind the pure molar
what is th molarity or concentration of a solution composed of 585g of potassium iodide dissolved in enough water to
01 m solutions of k2so4 nino32 and lic2h3o2 are prepared describe each salt as acidic basic or neutral explain your
a student measures k for a certain blue dye to be 2416 m-1 at 560 nm what is the molarity of the dye in a solution with