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Calculate the formula and the ions produce by using the condensed electron configuration and Lewis dot structure to depict the monatomic ions form from the following atoms(a)Cs and S (b)O and Ga (c) N and Mg (d)Br and Li
How many moles of NaOH would be required to completley neutralize 37.22mL of 0.25M HCl.
when 24.0 g of glucose a nonelectrolyte are dissolved in 500. gof water the solution has a freezing point of
When 2.848 grams of sulfur is dissolved in 50.0 ml of CS2 (density 1.263 g/ml), the solution boils at 46.54 C. what is the formula for sulfur
calculate what volume of each 0.50M solution should be mixed to give a total volume of 50.0mL AND the reactants in the correct stoichiometry. Also write a data table in the space given
The mass of an electron is 9.11 times 10^{-31}kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31times 10^{-10} how fast is the electron moving relative to the speed of light? The speed of light is 3.0 times10^8 m/s.
How many grams of dry NH4Cl need to be added to 2.30L of a 0.800 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.83? Kb for ammonia is 1.8 * times 10^-5
produces carbon dioxide and water. After 5.6 of ethanol (density = 0.789 ) was allowed to burn in the presence of 12.5 of oxygen gas, 3.10 of water (density = 1.00 ) was collected. Determine the theoretical yield of H2O and the percent yield for th..
How many L of solvent should be added to 0.46 L of a 0.28 M solution if you want a final concentration of 0.13 M.
At 25 c the ion product of water, Kw is 1.9 x 10^-14. What is the concentration of hydroxide ions in a solution where the concentration of hydrogen is found to be 5.0 x 10^-15 mol dm^-3.
The cup is a volume widely used by cooks in the U.S. One cup is equivalent to 237 cm^3. If 1 cup of olive oil has mass of 216 g, what is the density of olive oil in g/cm^3?
a 5.50 g sampleof an unknown is dissolved in 251. g of benzene. the freezing point of the solution is 1.02 c below the
a mixture contains 76.5 nacl and 6.5 mgcl2 and 17 na2so4 by mass what is the molarity of cl- ions in a solution formed
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