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A perfect gas is subject to expansion at a constant temperature, which increases its volume by 1.8 dm3 .The final pressure and volume of the gas are 124 Torr and 4.14 L, respectivley. Calculate the original pressure of the gas in a) Torr, b) bar, c), Pa, d) atm.
A reverse osmosis unit is used to obtain drinkable water from a source that contains 0.570 g NaCl per liter. What is the minimum pressure (in torr) that must be applied across the semipermeable membrane to obtain water. Assume room temperature or ..
If 1.00 g sodium bicarbonate and 1.00 g citric acid are allowed to react, how many grams of carbon dioxide will form?
Determine which monomer will have the higher degree of polymerization (DP) and by how much?
Give the structure and names of five alkenes having the molecular formula C6H12 that produce hexane on catalytic hydrogenation.
the decomposition of hypothetical compound X from part A is 1.60 M -1 * min -1, calculate the concentration of X after 16.0 min. Initial concentration is o.467
The nutritional calorie (Calorie) is equivalent to 1 kcal. One pound of body fat is equivalent to about 4.1 103 Calories. If an athlete expends 1975 kJ/h, how long does she have to play to work off 1.0 lb of body fat?
A sample is composed of a mixture of CaCO3 and CuSO4*5H2O. A chemist decided to analyze the mixture by dehydrating it by heating it to 120 degrees Celsius for 12 hours. If a 5.327 g sample weighed 4.281 g after dehydration
Eggshells contain calcium carbonate CaCO3. What test would determine the presence of carbonate in these substances and how would u write the chemical equation for this reaction
how I resolve it, A 1.25 gram sample of methane is container in a 850.0 mL flask at295.65 K.What is the pressure of this gas?
How many photons are required to heat 295 of coffee from 25.0 to 62.0 ? Assume that the coffee has the same density, 0.997 , and specific heat capacity, 4.184 , as water over this temperature range.
When aqueous HCl neutralizes benzoate anion, one of the actual acid species present is the hydronium ion, H3O+. Which is the more prevalent acid, HCl (pKa = -2.2) or H3O+ (pKa = 1.74). Write an equation that shows how H3O+ forms from HCl.
if a student have a soil with buffer ph of 6.7 and ph of 5.8 then determine how much dolomitic limeis an anhydrous
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