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Which one of the following is NOT one of the five gaseous components in highest concentration in the atmosphere?
The osmotic pressure was found to be 1.86 torr at 25°C. What is the molar mass of the polyethylene. R= 62.4 L-torr per mol Kelvin
what is the pH after the addition of 2.7*10-2 moles of KOH to 3.6*10-2 moles HCl if the resulting solution volume is 150mL
The remaining solid residue dissolved when 6 M NH3 was added but no precipitate was formed. The solution was then acidified with 6M HCl and a white precipitate formed. Based on this info
The standard cell potential (E°) of a voltaic cell constructed using the cell reaction below is 0.76 V: Zn (s) + 2H+ (aq) ? Zn2+ (aq) + H2 (g) With PH2 = 1.0 atm and [Zn2+] = 1.0 M, the cell potential is 0.42 V. The concentration of H+ in the cath..
A sample of gas is made entirely of carbon dioxide and water, and there are 259 moles of carbon dioxide and 513 moles of water. If the total pressure of the sample is 21 atm, what is the partial pressure of each gas?
An electron is confined to a one-dimensional box of length L. It falls from the second energy level to the ground state, and releases a photon with a wavelength of 322 nm. What is the length of the box?
The synthesis of Amyl acetate by alcohol and anhydride, there are some chemicals be provided: Potassium carbonate, Calcium carbonate, Sodium sulfate
calculate the average moles of ascobic acid in the pipetted sample used for titration d)Calculate the average moles of ascobic acid in the crushed tablet.
what is the longest wavelength of radiation that possesses the necessary energy to break a nitrogen bond.
The quantity of antimony in an ore can be determined by an oxidation-reduction titration with an oxidizing agent. The ore is dissolved in hot, concentrated acid and passed over a reducing agent so that all the antimony is in the form Sb3 (aq).
Which of the following ionic compounds will be more soluble in acid solution than in water? Explain your choice/s Determine whether the anions are basic and use Le Chatelier's principle.
A student adds 33.0045g of potassium acetate to water and then adds 7.0 ml of 1.0 M HCl to this . the resulting solution is diluted to 250.0 ml calculate the PH of the resulting solution.
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