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The stock solutions in Lab 3 were made as follows: Color Name Chemical formula mass of dye volume of solution FD&C Blue 1 Erioglaucine C37H34N2Na2O9S3 0.06343 g 1.000 L FD&C Yellow 5 Tartrazine C16H9N4Na3O9S2 0.1860 g 1.000 L For each of the dyes you will carry out the following dilution scheme: Dilution #1 = 5 mL of stock + 45 mL water Dilution #2 = 30 mL of #1 + 20 mL water Dilution #3 = 35 mL of #2 + 15 mL water Dilution #4 = 30 mL of #3 + 20 mL water What's the concentration (M) for the Stock Solution, Dilution 1, 2, 3 and 4?
A chemical process requires 8.700 g-mol of calcium sulfate (CaSO4) for a reaction. How many grams are in 8.700 g-mol of calium sulfate
a metal object with a mass of 19g is heated to 96 degrees Celsius, then transferred to a calorimeter containing 75g of water a1 18 degrees Celsius. The water and metal object reach a final temperature of 22 degrees Celsius. What is the specific he..
a sample of nitrogen gas expands in volume from 1.6 l to 5.4 l at constant temperature. calculate the work done in
two mass streams of an ideal gas are mixed in a steady-flow process in a mixing chamber while receiving heat transfer
question assume that the heat lost by the surface is gained by ethyl chloride. what enthalpies must you consider if you
Comment of the effectiveness of targeted prodrugs such as Xeloda for specific cancers such as liver tumors, as well as their effectiveness as a broad "cure for cancer
The vapor pressure of water at 25deg C is 23.8 torr. Determine the mass of glucose (MolarMass=180g/mol) needed to add 500g of water to change the vapor pressure to 23.3 torr.
When a certain unknown hydrocarbon is completely combusted with excess oxygen, it is observed that 1.12 L of H2O gas and 3.36 L of CO2 are produced at STP. What is the empirical formula of the unknown hydrocarbon
Given the reaction 2Al(s) + 3H2SO4(aq) --> Al2(SO4)3 (aq) + 3H2(g) what volume of H2 gas measured at STP will be produced from 5.40 grams of Al reacting with an excess of H2SO4
Calculate the wavelength (in picometers) associated with hydrogen atom moving at a speed of 3.13 x 10^3 cm/s
A chemist must dilute 71.4mL of 296mM aqueous potassium dichromate (K2Cr6O7) solution until the concentration falls to 81.0mM . He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final ..
calcium hydride cah2 reacts with water to form hydrogen gas.cah2s 2 h2ol caoh2aq 2 h2gthis reaction is sometimes used
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