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One mole of an ideal gas with a volume of 1.3 L and a pressure of 6.9 atm is allowed to expand isothermally into an evacuated bulb to give it a total volume of 3.1 L. Calculate w and q. Also, calculate qrev for this change of state.
spontaneous at high temperature or spontaneous at low temperature. (a) The temperature of a sample of Co(s) is lowered from 60°C to 25°C. (b) Ethyl alcohol evaporates from a beaker.
Calculate how many milliliters of carbon dioxide would be produced theoretically from 20g of sucrose at 25 degrees Celsius and 1 atomosphere pressure.
For the equation: C (s) + CO2 (g) -> 2CO (g); the value of Kp is 167.5 at 1000 oC. If a 5.00 L container initially contains 2.99 atm pressure of CO2 (g) at 1000 oC, what are partial pressure of CO2 (g) and CO (g) at equilibrium?
The osomotic pressure of this solution was 10.68 torr at 25 degrees C. What is the molecular mass of the protein?
Assume that .20 mol of the acid is added to 250 mL of water. To make a buffer of pH = 4, how many moles of the conjugate base must be added to the solution?
Calculate the molarity and the molality of an NH3 solution made up of 36.5 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.
When a mole of C2H4 is combusted it reacts with 3 moles of O2 to produce CO2 and H2O. How many moles of CO2 and how many moles of H2O are produced?
Calculate the pH of a 0.047 M solution of carbonic acid H2CO3. The Ka1 of carbonic acid = 2.6 x 10-7 and the Ka2 of carbonic acid = 5.6 x 10-11 what is the easiest way someone can explain this
The solubility of ammonium chloride at 70. C is 60. g of solute per 100. g of water. Which solution would be saturated at 70. C
Write the chemical equation for all the reactions both SN1 and SN2 involving primary and secondary substrates b) Rank the primary halide in order of increasing reactivity toward SN2
The alcohol content of hard liquor is normally given in terms of the "proof," which is defined as twice the percentage by volume of ethanol (C2H5OH) present. Calculate the number of grams of alcohol present in 1.00 L of 81-proof gin. The density o..
NaCl is added to 33.4ml of 0,327M AgNO3(silver nitrate). What would be the concentration of each of the ions(ie Ag+, NO3- Na+ and Cl-) in the reaction mixture after the reaction.
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