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What is the final dilution obtained after each dilution series shown below? Express each answer in exponential numbers.
a. 1:10, 1:10 and 1:100:?b. 10^-1, 10^-1, and 10^-2:?c. 10^-3 and 10^-5:?
Consider the following equilibria for phosphoric acid. H3PO4 ? H+ + H2PO4- K1 = 7.11 x 10-3 H2PO4- ? H+ + HPO42- K2 = 6.34 x 10-8 HPO42- ? H+ + PO43- K3 = 4.22 x 10-13
Calculate the concentration of OH- ion remaining in solution. Calculate the concentration of Sr+ ion remaining in solution. Calculate the concentration of NO3- ion remaining in solution.
Calculate the enthalpy and entropy change of C2H6 from a state at 300K and 30 bar to a state at 400 K
A sample of sodium reacts completely with 0.142 kg of chlorine, forming 234 g of sodium chloride. What mass of sodium reacted?
What is the mole fraction of methane in the mixture? (Assume that the water produced by the combustion is in the gaseous state.)
Rubidium has two common isotopes, 85Rb and 87Rb. If the abundance of 85Rb is 72.2% and the abundance of 87Rb is 27.8%, what is the average atomic mass of rubidium.
what is the boiling-point change for a solution containing 0.360 mol of naphthalene (a nonvolatile, nonionizing compound) in 256.0 g of liquid benzene? (Kb=2.53 celsius/m for benzene).
Calculate the theoretical yield of C2H5Cl when 139 g of C2H6 reacts with 232 g of Cl2 , assuming that C2H6 and Cl2 react only to form C2H5Cl and HCl .
Why is gravity filtration and not suction filtration used to remove suspended impurities
Write the net ionic equation for the cell and identify which half cell will be cathode A cell constructed with a Ag/Ag+ half-cell and a Cu/Cu+ half cell.
A tire manufacturer has a 60,000 mile warranty for tread life. The manufacturer considers the overall tire quality to be acceptable if less than 8% are worn out at 60,000 miles.
exists for each of these chemical reaction types above and why might it be of importance to healthcare professionals?
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