What would be the partial pressure of the oxygen
If oxygen gas were collected over water at 295K and the total pressure of the wet gas were 710 mm Hg, what would be the partial pressure of the oxygen?
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Hydrocortisone valerate is an ingredient in hydrocortisone cream, prescribed for skin problems. Its empirical formula is C26H38O6. What is the percent by mass of carbon in hydrocortisone valerate?
What is the product formed from the reaction of benzaldehyde and sodium borohydride?
Calculate the pH of a solution made by adding 77 g of sodium acetate, NaCH3COO, to 24 g of acetic acid, CH3COOH, and dissolving in water to make 700. mL of solution. Hint given in feedback.
A 1.630 g sample of naphthalene, C10H8(s), is completely burned in a bomb calorimeter assembly and a temperature increase of 8.44°C is noted.
A basketball is inflated to a pressure of 1.50 atm in a 20.0C garage. What is the pressure of the basketball outside where the temperature is -5.00C?
When a 7.00-g sample of KCN is dissolved in water in a calorimeter that has a total heat capacity of 2.734 kJ·K-1, the temperature decreases by 0.460 K. Calculate the molar heat of solution of KCN.
Calculate the amount of heat liberated (in kJ) from 375 g of mercury when it cools from 89.2°C to 15.7°C
What is the freezing point of a solution made by dissolving 352g of ethylene glycol c2h6o2 on 648g of water the freezing point of pure water is 0.0c and kf of pure water is -1.86Cm?
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