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Question 1: A student put a bottle of water and a can of sugared soda in the freezer to chill them quickly. When she took them out, the bottle of water was frozen but the can of soda was not. Explain why this happened.
Question 2: Table sugar (C12H22O11) and table salt (NaCl) look very similar but have very different properties. Compare the properties of the two solids in the following areas.
Question 3: A passenger on an airplane finished a 0.5 L bottle of water during the flight and replaced the lid. The cabin pressure and temperature were maintained at 0.75 atm and 22°C during the flight. After landing, he noticed his empty water bottle had collapsed. (8 points)
determine the value Keq at 400K for the decomposition of phosphorus trichloride of [PCl5]=0.135 mol/L, [PCl3]=0.550mol/L.. and [Cl2]=0.550mol/L the equation for the reaction.
Suppose a certain pipet delivered 129 mg of a solution at 20 °C. If the solution had a density of 1.0359 g/mL, what volume of the solution was delivered?
Honey Roasted Sunflower Nuts has 140 Cal (kcal) fat and the total Calories (kcal) is 190 Cal (kcal). What percent (%) of the total Calories in your food product is from fat
Consider titrating 15.0ml of a .245M solution of hydazine, H2NNH2, with a .453M HCl solution. The Kb value for hydrazine is 1.3x10^-6. What volume of HCl needs to be added to the solution in oder to have a bffer system with the maximum capacity fo..
Provide the structure of the alkyl bromide that is needed to prepare 6-methyl-2-heptanone using the acetoacetic ester synthesis.
What quality of heat energy, in J, is required to raise the temperature of 454g of tin from room temperature, 25.0C to its melting point, 231.9C, and then melt the tin at that temperature
What is the vapor pressure of CS2 (in mm Hg) at 15.0C. Carbon disulfide, CS2, has Pvap = 100mm at -5.1 C and delta Hvap = 28.0 kJ/mol.
What mass of sucrose (C12H22O11) should be combined with 500 grams of water to make a solution with an osmotic pressure of 8.70 atm at 295 K
Why did Becky's doctor provide only supportive care? Why weren't antimicrobials part of her treatment?
Problem- A metal whose threshold frequency is 6.71 * 10^14 s^-1 emits an electron with a velocity of 6.95 * 10^5 m/s when radiation of 1.01 * 10^15 s^-1 strikes the metal. Use these data to calculate the mass of the electron
the ka for h2po41- is 6.3 x 10-8. the ka for hs1- is 1.3 x 10-13. both are amphoteric substances.a what does amphoteric
Draw the appropriate titration curve for the tripeptide Met-Lys-Val, starting at pH 1 and ending at pH 12, On the curve label the pKas and the pI
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