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What is the difference between levels of measurement? Interval and Ratio? What are some examples of each? Its difficult to distinguish between them. Thank you for your help.
the average number of collisions suffered by a single molecule of nitrogen in a second. (b) the total collision frequency Zbb in 1 / (cm^3 s).
Devise cells to study the following biochemically important reactions. In each case state the value for v to use in the Nernst equation.
Concentrated H2SO4 is 96% by weight H2So4 and has a density of 1.84 gm/ml. Calculate the volume of concentrated H2SO4 acid required to make 150 ml of 4 M H2SO4
Also asking for initial pH of [H3O+] (mol/L) and [OH-] (mol/L), what would this be and is there a particular formula to use for these calculations of tenfold.
What is the nickel ion concentration in a solution prepared by mixing 389 mL of 0.428 M nickel nitrate with 467 mL of 0.323 M sodium hydroxide
100.0g of Cl2O7 are mixed with excess of water obtaining 136.0g of periodic acid according to the following reaction. Determine the percent yield of HClO4.
equal quantites of the hypothetical strong acid hx weak acid ha and weak base bz are added to seperate beakers of water
The Ka for a weak acid, HA is 1.6 x 10^6. What are the pH and degree of ionization of the acid in a 10^-3 M solution. Calculate the pKa and pKb.
Explain how you would prepare 100.0mL of a solution, using pure solute and water, that is 5 v/v% C2H6O(ethanol).
Calcium carbonate CaCO3 reacts with stomach acid HCL according to the following equation: CaCO3 + HCl --- CaCl2 + H2O + CO2. Tums, antacid, contains CaCO3. If tums is added to 20.0 mL of 4.00M HCl, How many grams of CO2 gas are produced.
0.25 mols of an unknown acid is dissolved in enough water to make 1 liter of solution. the ph of the solution is 2.19.
Problem- How many minutes will it take to electroplate 49.1g of gold by running 5.00 A of current through a solution of Au+(aq)
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