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A compound composed of only carbon and hydrogen is 7.743% hydrogen by mass. Propose a Lewis structure for the compound.
For carbon tetrachloride, the boiling-point constant is 5.03 C x kg/mol, and the boiling point of pure carbon tetrachloride is 76.50 C.
Determine the density of N2O(g) at a pressure and temperature of 0.7982 atm and 304.5 K, respectively.
The pH of a lake that has a volume of 2.4*10^4 liters has a pH of 4.5. Calculate the mass of Calcium Carbonate (CaCO3) that must be added to the lake water in order
Show the mechanism for the preparation of 1-bromobutane from 1-bromobutanol reacting with NaBr and sulfuric acid. an sn2 mechanism and one step.
What is the mass in grams of 1.56 moles of menthol?
When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2Al(s)+6HCl(aq) yeilds 2AlCl3(aq)+3H2(g). what mass of Al(s) if required to produce 725.5 mL of H2(g) at STP
Kc=4.6*10-3 for the reaction below at 25 celsius. evaluate Kp at 25 celsius N2)4(g)---->2NO2(g)
how many grams of MgCl2 are contained in 225mL of a 0.650 M solution
The amino acid histidine has 3 pKa's at 1.8, 6.0 and 9.3. In a 0.01 M solution of histidine, what is the concentration of protonated carboxylic acid at pH 7.4. The primary amine. The side chain
Why is the boiling point of octane, C8H18, higher than that of methane, CH4, if they are both nonpolar molecules? 7-Using a diagram to illustrate your answer, explain the effect of temperature on the vapor pressure of a liquid.
15.0 grams of an unknown sugar was dissolved in water and the final volume of the solution was brought up to 1.00 L. The osmotic pressure of this solution was determined to be 2.44 atm at 25°C. Which of the sugars below was most likely the unknown..
A 50% by mole solution of ethanol and water is prepared. Both their partial volumes do not equal their pure partial volumes. The total volume is observable, however, there are two unknowns. Using an approximation how can two partial volumes be mea..
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