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The following procedure was used to determine the volume of a flask. The flask was weighed dry and then filled with water. If the masses of the empty flask and filled flask were 47.09 g and 97.22 g, respectively, and the density of water is 0.9976 g/cm3, calculate the volume of the flask in cm3.
How many grams of sodium sulfide are formed if 28.25 g of hydrogen sulfide is bubbled into a solution containing 34.06 g of sodium hydroxide, assuming the limiting reagent is completely consumed
Consider 1 mole each of gaseous He and N2 at the same temperature and pressure. The diameter of N2 is 1.7 times that of He. State which gas (if any) has the greater value for: a) ; b) crms; c) average translational energy ; d) Z1; e) Z11; f) de..
an empty volumetric flask weighing 60.42 grams weighed 309.60 grams when filled with water. after emptying the water
The unit celll of copper (Cu) is a face-centered cube that has an edge lenth of 3.62 A (note: 1A=1*10^-10 m). Determine the volume occupied by one mole of copper atoms, interms of mL/mol.
Calculate how much energy in the form of heat is available from 100mL of this mixture and compare it with the amount from pure gasoline.
Does the container containing 0.72 moles of helium follow EPA regulations - explain by determining the volume that 0.72 moles of helium gas would occupy if not pressurized.
A 0.1276 g sample of a monoprotic acid (molar mass=1.10 x 10^2) was dissolved in 25 mL of water and titrated with 0.0633 M NaOH. After 10 mL of base had been added, the pH was determined to be 5.87. What is the Ka for the acid
Calculate the activity and activity coefficient for ethanol in this solution. c. Calculate ?mixG for a solution that contains 0.12 moles of ethanol and 0.83 moles of chloroform at 35.0 oC.
Question- According to the bronsted Lowry definition which chemical in the following reaction is the acid. Cl-+ H2O-> OH-+ HCl
Explain how are gases affected under different atmospheric pressures. In what ways might this affect you if you are moving to a different elevation
A first order reaction has a half life of 26.4 sec. How long will it take for the concentration of the reactant to fall to 1/8 of its original value
What is the theoretical voltage that can be produced by this cell at standard conditions? Show your work.
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