Blog

Calculate the electronegativity difference in a hydrogen fluoride bond:

The DuPont analysis is often used to provide a quick look at company performance before undergoing a more extensive analysis.  Based upon the DuPont Analysis provided below, discuss the relative performance of two companies, Target and Walmart.  Most recent annual data from morningstar.com.  Note: A full discussion is not indicating which is higher in each category.   Company  Profit Margin Total Asset  Turnover Equity Multiplier Return on Equity Target 4.67% 1.99 3.54 32.90% Walmart 2.42% 2.28 3.12 17.21%

Using VSEPR theory, predict the molecular shape for a silane molecule, SiH4.

ADVANCED CONCEPTS What is the most important assessment to perform before giving the first dose of any drug to treat insomnia?

Draw the electron dot formula for the carbonate ion, CO32- (C is the central atom).  How many pairs of nonbonding electrons are in a carbonate ion?

ADVANCED CONCEPTS A patient who was prescribed citalopram 1 week ago for depression reports feeling no different now from 1 week ago and wants to stop taking the drug. What is your best response?

BASIC CONCEPTS In what way do uric acid synthesis inhibitors reduce gout symptoms?

  What is the partial pressure of 53.5 mL of hydrogen gas collected over water at 25°C and 777 mm Hg?  (The vapor pressure of water at 25°C is 23.8 mm Hg)

Which of the following groups has a predictable ionic charge of three negative?

What’s the present value, when interest rates are 5%, of a $40 payment made every year forever?  Round your answer to the nearest dollar.