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meteorological balloon contains 375 L of helium at 29°C and 0.928 atm. If the volume of the balloon can vary according to external conditions, what volume would it occupy at an altitude at which the temperature is -40°C and the pressure is 0.031 atm?
Suppose a sample of solid hydrogen is held under an external pressure of 0.030 atm and heated from 5 to 300 K. What phase change(s), if any, will occur?
A bottle containing 335 of cleaning solution is used for carpets. If the cleaning solution has a specific gravity of 0.850, what volume of solution was used?
What are some ways to induce recrystallization (Name 3), if your solute refuses to recrystallize after performing the required 7 steps?
What mass of this substance must evaporate in order to freeze 250 g of water initially at 15 C? (The heat of fusion of water is 334 {J/g}; the specific heat of water is 4.18 {J/g c.K}.)
How much energy is released during the complete combustion of 372 grams of cyclohexane ?
How many grams of H3PO4 are in 175 mL of a 3.5 M solution of H3PO4?
Determine the equilibrium concentrations - what are the new equilibrium concentrations of all species.
Determine pH of the solution....ICE table..Henderson HasselBach equations, Using a ICE table (initial change equilibrium) a)Calculate the pH of solution that is 0.175M in acidic acid(HC2H3O2) ans 0.110Min potassium Acetate(KC2H302)
Creatine is a by-product of muscle metabolism, and creatinine levels in the body are known to be a fairly realiable indicator of kidney function.
Acetyl chloride reactions, What major organic products would you expect to be formed when acetyl chloride reacts with the following reagents?
Using a sample of 0.385 g of Alka-Seltzer, the mass of Carbon dioxide is found to be 0.122 gram. Compute and enter response (in numerical value only) to three significant figures.
A fluorinated organic gas in a cylinder is com- pressed from an initial volume of 960 mL at 158 Pa to 478 mL at the same temperature. What is the final pressure? Answer in units of Pa.
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