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Rubidium carbonate, Rb2CO3(aq), reacts with hydrobromic acid, HBr(aq), to form a salt, a gas, and H2O(l).
(a) Write the net ionic equation for this reaction. (Include states-of-matter under the given conditions in your answer. Use the lowest possible whole number coefficients.)
What is osmium's molar capacity if the two substances reach thermal equilibrium at 100 degrees Celsius? Osmium, the densest known metal, has a density
Titration of the newly freed EDTA required 18.0 mL of 0.0210 M Ca2 . What were the molarities of Cd2 and Mn2 in the original solution?
Determine the energies of ten lowest energy levels for this system.
A student is concentrating a solution having a polypeptide of modest molecular weight by pressure filtration through a membrane. The solute concentration on the feed side of the membrane is 0.10 M and the temperature is twenty five degree celsius.
How much heat is absorbed when 63.7g H2O(l) at 100 degrees C is converted to steam at 100 degrees C? Express your answer in kJ.
Calculate the energy of the frequency at which they are broadcasting. (In kilojoules)
Calculate how the amount of AgCl(s )will change when the equilibrium is disturbed by Adding AgNO 3
What are the values of [H+], [H2PO3-], and [HPO32-] in a 3.0 M solution of H3PO3? What is the pH of the solution?
A buffer contains 0.30 M acetic acid and 0.20 M sodium acetate. What is the pH of the buffer as prepared and after 0.030 mol/L of a strong acid or 0.030 mol/L of a strong base are added (Ka = 1.8 x 10-5).
If an unknown crystalline organic compound has a heat of melting that is 8.605 kJ/mole and a melting point of 250.6 C
Clearly explain, using calculations as necessary, how you would obtain the 5 mL of 1.5M sodium hydroxide that you need
What is the minimum temperature required to convert all but 0.040 of to products by 4:00 p.m.?
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