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Arrange the subsequent aqueous solutions in order of rising freezing points(lowest to highest temperature): 0.10m glucose, 0.10m BaCl2 , 0.20m NaCl, and 0.20m Na2SO4
A famous foot race in California starts from the bottom of Death Valley (100 m below sea level) and finishes at the top of Mt. Whitney (4300 m above sea level). what percentage does the oxygen number density decrease between the start and the finis..
Determine the Keq for the reaction of benzoic acid with 4-nitroaniline.
A chemist decomposes several samples of water into hydrogen and oxygen and weighs the hydrogen and oxygen obtained. The results are: 1) 1.5g H and 12g O 2) 2g H and 16g O 3) 2.5g H and 20g O.
celsius absorbs 281kJ of heat from a mountain climber's stove at an elevation where the boiling point of water is 89 degrees celsius, how many kJ are required to boil the water?
copper has two isotopes:cu-63 (abundance= 69.2%, mass= 62.930 amu) and cu-65 (abundance= 30.8% mass= 64.428 amu). calculate the (average) atomic mass of copper.
A solution is made by mixing 500 mL of .167 M NaOH with 500 mL of .1 M CH3COOH. Calculate the equalibrium concentrations of H+. CH3COOH, CH3COO-, OH- and Na+
Draw the Lewis structure of the major resonance form of the thiosulfate ion, S2O3 2-. Include all lone pairs of electrons. Include formal charges on atoms with charges.
The mass spectrum of an organic compound shows the relative abundances of M to be 58.09% and M 1 to be 15.08%. Assuming the peaks are caused by 12C and 13C isotopes, determine the number of carbon atoms in the compound
when 1 mol of graphite turns into 1 mol diamond at a pressure of 50 atm. what is the value of the quantity
The conditions of a gas change in a steady flow process from 20 degrees C and 1000 kPa to 60 degrees C and 100 kPa. Devise a reversible nonflow process
Define that you are given 2500 atoms of the isotope 222RN. If 600 atoms of 222Rn remain after 7.87 days, explain what is the half-life of 222Rn? In radioactive decay the number of nuclei can be substituted can be substituted for concentration
The Nernst equation is used to predict the impact of concentration on the cell potential. What value of slope does the Nernst equation predict
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