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Given a stock solution of a food dye having a concentration of 1.0 x 10-5 and an absorbance of 0.700. If a new solution is made by diluting exactly 10.0 mL of the solution with exactly 42.5 mL of distilled water, what should the absorbance of the new solution be?
The oxidation of ethanol CH3-H2C-OH produces acetaldehyde CH3-HC=O. This reaction catalyzed by enzymes takes place in the body after alcohol consumption.
The reaction that was on the screen when you started and its derivative demonstrate that the change in enthalpy for a reaction, Delta H, is an extensive property.
The vapor pressure of ethanol at 34.7 degrees Celsius is 100mmgh, and the heat of vaporization of ehanol is 38.6 kj/ mol. What is the vapor pressure of ethanol in mm Hg at 65.0 degree celcius
If 2.3g of sodium reacted with 1.8 of water, what would be the total mass of sodium hydroxide and hydrogen produced?
The reaction of Nitric Oxide (NO(g)) with molecular hydrogen (H2(g)) results in the production of molecular Nitrogen and water as follows; 2 NO(g) + 2 H2(g) --> N20(g) + 2 H2O(g) The experimentally determined rate-law expression for this reaction ..
which has the highest vapor pressure?a ch3ch2ohb ch3ch2ohch2ch3c ch3ch2coohd h2oe
The final temperature of the water and iron was 48.4oC. Assuming that the calorimeter itself absorbs a negligible amount of heat, what was the mass
What mass of lithium phosphate is needed to prepare 600 ml of a solution having a lithium ion concentration of 0.225 M?
A solution containing Pt4+ is electrolyzed with a current of 5.00 A. How long will it take to plate out 77% of the platinum in 0.50 L of a 0.010 M solution of Pt4+?
Explain the difference between simple and fractional distillation. What are the differences in glassware used in simple vs. fractional distillation
A 100 ppm quininesulfate ( MW = 782.97 g/mol) solution was used as the standard. Assuming that your original (undiluted) sample contained 142 ppm of quinine sulfate, calculate the amount in ppm of quinine in the sample.
Draw the organic product(s) of the reaction of p-methylbenzoic acid with LiAlH4, then H3O+ in the window below. If no new products are formed, tell OWL by drawing ethane, CH3CH3.
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