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The volume of the box on the right is twice that of the box on the left. The boxes contain helium atoms (red) and hydrogen molecules (green) at the same temperature.
(a) Which box has a higher total pressure?
(b) Which box has a higher partial pressure of helium?
how much kno3 must be added to 500ml of media solution such that it would contain 0.1 m kno3? what is the equivalent in
Explain when sodium metal comes into contact with water, hydrogen bubbles out of the solution (presenting a potential fire hazard)- 2 Na(s) + 2 H2O ? 2 NaOH(aq) + H2(g)
You are given the masses, in grams (g), and the volumes, in cubic centimeters (cm3), for a series of substances. Arrange them in order of increasing density(Lowest to Highest)
Indicate which compounds present i) in the reactants and ii) in the products from this lab experiment could be expected to give positive tests with a) permanganate and b) ceric ammonium nitrate.
A semiconductor of n-type is know to have an electron concentration of 3 x 1018 m-3. If the electron drift velocity is 100 m/s in an electric field of 500 V/m
Compute w when 181 grams of iron (III) oxide (MM = 159.7 g/mol) combines with excess carbon(C)) to produce carbon dioxide(CO 2 ) gas at 359 K: express your answer in kilo joules
Compute the molarity of NaOH from a titration that contained 0.5156 g of KHP as well as 29.35mL of 0.1 M solution of NaOH used.
methabe reacts withoxygen in the air to produce carbon dioxide and water. ammoniareacts with oxygen in the air to
You find a reagent bottle that is labeled with "vanadium (III) nitrate hydrate" and it contains a chalky looking powder. Do you believe the label? Why or why not?
Explain what is the resulting total pressure of gases in the now-joined flasks? Presume no reaction between the gases and that the gases behave ideally
The initial temperature of the calorimeter is 23.0C. If 10.0 g of CaCl2 is added to the calorimeter, what will be the final temperature of the solution in the calorimeter. The heat of solution, Delta Hsol, of CaCl2 is -82.8~kJ/mol.
Based on the notion of weak and strong acids and bases, which of the following three actions would you expect to produce the largest ( most negative) ΔHneut. the smallest ΔHneut
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