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A firm recently spent $100 on Google AdWords and generated 100 extra visits to the firm's website, 5 of which resulted in a purchase. To pay for the change, they dropped the banner advertising on ESPN.com saving $1000, which also reduced the number of visits to their website by 500 and 20 fewer sales. Sales from visitors from ESPN.com were on average 25% higher than sales from visitors from Google AdWords. Evaluate the decision to shift advertising money from ESPN.com to Google AdWords
calculate the approximate volume of a 0.600 mol sample of gas at 15.0 degrees Celcius and a pressure of 1.10 atm.
If you hadn't added quite enough Hydrochloric acid to consume all of the magnesium metal, what would be the effect of this error
As a bromine molecule approaches perpendicular to the negatively charged pi cloud of the carbon-carbon double bond, its bonding electrons are repelled away from the bromine atom nearer the double bond
the overall dissociation of tartaric acidh2c4h4o6 isrepresented below. the overall dissociation constant is
Calculate the percent ionization of 7.5×10?3 M butanoic acid in a solution containing 7.0×10?2 M sodium butanoate.
A metal cube of volume 1.55± .05 cm is found to weigh 21.0 ± .5 g. a) What is the density of the metal in kg/m3? (correct significant figures only) density = kg/m3 b) What is the relative uncertainty? ± (dimensionless)
The density of germanium is 5.325 g/cm^3 . If you made a 4 nm quantum dot of germanium, how many atoms would it contain? Assume the dot is spherical.
A 0.5750 g sample of a gas was measured as having a volume of 343.3 mL at 102.9 kPa and 24 degrees celsius. What is the molar mass of the gas.
Assuming that a cell is capable of glycolysis and oxidative phosphorylation, but is incapable of carrying out the TCA cycle, what would the energy yield (# of ATP molecules) be for the metabolism of one glucose
Draw stereochemical projections for the products of bromine addition to maleic acid and fumaric acid (cis and trans HOOCCH=CHCOOH, respectively) assuming that bromine adds to these compounds the same way it does to cinnamic acid.
Draw a tetra-peptide that FPHD at pH 2.0. Clearly indicate with a circle what groups would be charged if the pH was changed to 12.0. Draw a box around the peptide bonds
The question in the lab is asking what percentage by mass is the calcium, chloride and water in the orginal solution for each trial. In this lab we performed two trials, in each, we added 50 mL water to 2.0 g of CaCl2.
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