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Pike's peak in Colorado is approximately 4,300 m above sea level. What is the boiling point of water at the summit and will a camper need longer or shorter time to cook food at the summit as compared to the cooking at the sea level? Assume the molar mass of air is 29.0 g mol-1, ?vapHm for water is 40.79 kJ mol-1 and the temperature at Pike's peak is 0?C. Use the following equation to calculate barometric pressure: P=Po*e^(-gMh/RT)(where Po atmospheric pressure, P is the pressure at 4300 m, T is temperature at Pike's peak, M is the molar mass of air and h is the height)
Which of the following will have the lowest freezing point?
A 20.0-mL sample of 0.800 M HBr solution is titrated with 0.800 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added.
Gurmt wanted to perform Activity 16.8 using a laser torch. Her teacher advised her not to do so
aqueous solution of sucrose, C12H22O11(aq), which is used frequently in biological experiments. What is the value of x?
assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the total heat capacity of the calorimeter.
In the periodic table, the element hydrogen is sometimes grouped with the alkali metals and sometimes with the halogens. Explain why hydrogen can resemble the Group A1 and the Group 7A element
A 325 mL sample of solution contains 25.3 grams of CaCl2. Calculate the molar concentration of Cl- in this solution.
the equilibrium constant for the following reaction has the value 2.1103 at a particular temperature.h2g f2g 2 hfgwhen
The zincblende structure of ZnS has the relatively large sulfide ion arranged at the lattice points of a face-centered cubic structure. The edge length of cubic unit cell is 540.9 pm. Determine the density of zincblende.
What was the concentration, in mol/L and mg/L, of Cu^2+ and Zn^2+ in the original solution? If the solution was prepared by dissolution of 0.654 g of brass in 250.00 mL solution, what the percentage of copper and zinc in the original sample of bra..
The dired sludge is 95% solids (5% water), and the liquid stream contains 8% solids. What is the quantity of dried sludge, and what is the liquid and solids flow in the liquid stream?
When 85.00 mL of 0.250 M Ca(OH)2 (aq) and 15.00 mL of 0.750 M Pb(NO3) (aq) are mixed together in a beaker a yellow precipitate is formed. Assume all heavy metal hydroxides are insoluable
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