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Silver has two naturally occurring isotopes. Find the percent abundances of 107Ag and 109Ag given the atomic mass of Silver = 107.868 amu, the isotopic mass of 107Ag = 106.9051 amu, and the isotopic mass of 109Ag = 108.9045. The sum of the fractional abundances is 1. If x = abundance of 107Ag, then 1 - x = abundance of 109Ag.
what mass of ethanol c2h5oh a nonelectrolyte must be added to 10.0 l of water to give a solution that freezes at
When ethane (C2H6) reacts with chlorine (Cl2) the main product is C2H5Cl; but other products containing Cl (chlorine), such as C2H4Cl2, are also obtained in small quantities. The formation of these other products reduces the yield of C2H5Cl. In a ..
Some ice cubes at 0 degrees celsius with a total mass of 335 g. are placed in a microwave and subjected to 750. W of energy for 5 minutes.
good primary standard for aqueous acid-base titrations. Calculate the mass, in grams, of KHP needed to produce 250. mL of a 1.50 M solution of KHP.
Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 49. g of butane is mixed with 150. g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction.
The vapor pressure of an unknown compound at 25 degrees C is 94.6 Torr and its enthalpy of vaporization is 30811 J/mol. Estimate the normal boiling point of this compound. assume the enthalpy of vaporization is independent of temperature.
the pH at the equivalence point. the pH after adding 6.0 mL of acid beyond the equivalence point
In the laboratory we may prepare a sodium hydroxide solution by dissolving 2.0 grams of sodium hydroxide into enough DI water to give a total volume of 500ml. What are the [OH-], the [H3O+] and the pH of the resulting solution?
Calculate the overall relative standard deviation, the relative standard deviation of the method, and the relative standard deviation of the sampling process.
Consider the reaction 2ZnS + 3O2 → 2ZnO + 2SO2. Suppose that you wanted enough O2 to completely react with 500. g of ZnS.
Compare volumetric glassware (volumetric flasks, pipets, burets) with other routine glassware (Erlenmeyer flasks, graduate cylinders, beakers) by sorting the qualities or properties into the correct bins.
The crystalline form of silver (Ag) is composed of face-centered cubic unit cells. If the density of silver is 10.48 g/cm3 at room temperature,
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