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Which solution do you expect to have the lowest boiling point? Explain your answer. a. 10 grams of Na2SO4 in 60 mL water b. 10 grams of KCL in 60 mL water c. 10 grams of glucose (C6H12 O2) in 60 mL water
What is the oxidation state of an individual nitrogen atom in KNO3. What is the oxidation state of each individual carbon atom in ?C2O4^-2
When you standardized the Sodium thiosulfate, what molarity of Na2S2O3 did you observe for each of your 3 trials.
A flask at 21.0°C contains exactly equal moles of xenon and argon. Which of the two gases exerts the greater partial pressure. The atoms of which gas have greater average kinetic energy
As a food chemist for a major potato chip company, you are responsible for determining the salt content of new potato chip products for the packaging label. The potato chips are seasoned with table salt, NaCl.
Hydrogen bonding does not make a significantly large contribution to the overall stability of the DNA molecule. Explain
A proton in a magnetic field has two spin states
Calculate the hydronium ion concentration and the pH after the addition of .25mL of .10 M HCl to each one. What accounts for the difference in hydronium ion concentrations? Explain this based on equilibrium concepts.
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.
The following density measurements were made on a bar of iron: 7.58 g/mL, 8.02 g/mL, 7.83 g/mL, 7.80 g/mL, and 7.66 g/mL. The accepted value for iron's density is 7.85 g/ML. Find:
Potassium hydroxide is used to precipitate each of the cations from their respective solution. Determine the minimum concentration of KOH required for precipitation to begin in each case
Calculat the freezing point of a solution containing 50.0 grams of kcl and 5500.0 grams of water the molal freezing point depression (kf) for water is 1.86 c/m
How many grams of sodium azide are needed to provide sufficient nitrogen gas to fill a 35.0 by 35.0 by 25.0 cm bag to a pressure
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