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If an ideal gas has a pressure of 8.79 atm, a temperature of 19.18 °C, and has a volume of 19.91 L, how many moles of gas are in the sample?
Calculate the molarity of the hydroxide ion (OH-) for this final mixture (51.5mL) Please do not tell me to do Y while leaving out X and Z
What was the initial concentration of COCl2?
If 0.600 gram of zinc is used, what is the amount of zinc chloride that is produced in the above reaction?
Tell whether each of the experimental errors in excercise will affect the melting point of the unknown component.
If 6.06 L of O2 gas is collected over water at 250C (vapor pressure = 23.8 torr) and a barometric pressure of 702 torr, what is the mass of H2O2 (MM = 34.02 g/mole) decomposed?
What is the pH of a buffer solution prepared from 5.15g of NH4NO3 and 0.10L of 0.15M NH3? What is the new pH if the solution is diluted with pure water to a volume of 500mL
30.0 mL of a 3.0 M KOH solution are diluted to 250.0 mL. What is the molarity of the diluted KOH solution? 3)what volume of 1.00 M NaOH is required to prepare 500.0 mL of 0.250 M NaOH? then explain how to prepare this solution.
Assume that a solid has a constant of Cp,m=25 J/K-mol from 50K to 298K and that the DeBye approximation is valid from 0K to 50K. Estimate the standard molar entropy Sm for the solid at 298K.
Calculate the molar solubility of Pb(IO3)2 in water by systematic method. {ksp for Pb(IO3)2 = 2.5 x 10^-13}
When 338 g of Bi2O3 reacts with excess carbon, how many moles of Bi2O3 react?
what is the concentration of ammonia in a buffer containing 0.10M ammonium chloride at a pH 10.6?
Calculate the amount of energy in kilojoules needed to change 135 of water ice at -10 degrees Celsius to steam at 125 degrees Celsius.
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