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Benadryl is on sell this week for 25% off of the normal selling price at $10.00 per unit. If the pharmacy purchased Benadryl at $5.00 per unit, what is the gross profit percentage?
Explain what is saturated sodium chloride, rather than pure water, utilized for this procedure and the subsequence washing of the organic layer
Table salt (NaCl) and sugar (C12H22O11) are accidently mixed. A 5.00 g sample of the mixture is combusted, and 1.80 grams of CO2 are produced. What is the mass percent of sugar in the mixture
hydrogen peroxide is used as a cleaning agent in treatment of cuts and abrasions for several reasons. In the laboratory, small quantities of hydrogen peroxide can be prepared by the action of an acid on an alkaline earth metal peroxide, such as ba..
A buffer solution was prepared by adding 4.95 g of sodium acetate, NaCH3CO2, to 2.50 x 10^2 mL of 0.150 M acetic acid, CH3CO2H. What is the pH of the buffer?
a calorimeter consists of metal parts with a heat capacity of 850.0 j k-1 and 1100 g of oil with a specific heat of
Use values of ksp and kf for copper (II) hydroxide and its complex to predict if a precipitate should form in a 0.1 M Cu2+ solution that is 3M in OH-
Define what is the pH of the solution when 18.30 mL of 0.137 M trisodium hemimellitalate (trisodium benzene 1,2,3, tricarobxylate) is mixed with 25.00 mL of 0.274 M HNO3 (to two d.p.)
the carbon-carbon bonds would be alternately long and short. However, to consider the structures as resonance contributors (or to connect them by a double-headed arrow) violates a basic principle of resonance theory.
Draw the Lewis structure and structural formulas for CCl3F. Sketch the spacefiling model and the charge-density model for this molecule.
Compute pH of a solution that is 0.210 M in nitrous acid (HNO2) and 0.290M in Potassium nitrate(KNO2). Define the acid dissociation constant of nitrous acid is 4.5x10-4
At what angle would the second order light of the same wavelength be reflected on the same side of the normal to the grating as the incident of light
How many calories are required to heat 25.0 g of platinum (specific heat capacity = 0.032 cal/g.K) from 24.5 oC to 75.0 oC?
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