What percentage difference in the hydrogen ion concentration
The pH of ocean water is about 8.1. If it changes as expected over the next century it may drop by 0.3 to 0.5 pH units. What percentage difference in the hydrogen ion concentration will this make?
Expected delivery within 24 Hours
Express the work of isothermal reversible expansion of a vanderwaals gas in reduced variables and find a definition of reduced work that makes the overall expression independent of the identity of the gas.
A sound source of 500 Hz with an acoustic power of 1/10 of a watt how do you find the intensity 1/2 a m from the source, the pressure amplitude, and the magnitude of the specific acoustic impedance assuming the amplitude of the particle velocity i
How does the mass density compare to the density of individual neutrons (take them to have a radius of 2.3 attometers.
A copper penny has a mass of 3.1 g. Being electrically neutral it contains equal amounts of positive and negative electricity.
a. What equal positive charges would have to be placed on the earth and on the moon to neutralize their gravitational attraction?
Calculate the change in molar Gibbs energy of carbon dioxide (treated as a perfect gas) at 200 C when its pressure is changed isothermally from 1.0 bar to (a) 3.0 bar (b) 2.7 x 10-4 atm, its partial pressure in dry air at sea level.
A mixture of the compounds aluminum chloride and magnesium sulfide contains 48.2 g of aluminum chloride and is 68.3 % by mass aluminum chloride. Calculate the mass (g) magnesium sulfide in the mixture.
Calculate the molar composition of the product gas for each of the following three cases: (i) theoretical air supplied, 100% conversion of butane; (ii) 20% excess air, 100% conversion of butane; and (iii) 20% excess air, 90% conversion of butane.
1952365
Questions Asked
3,689
Active Tutors
1454406
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
A 44-year old female with a past medical history of poorly controlled type 2 diabetes, hypertension, hyperlipidemia, untreated depression
Problem: A 75-year-old man with a history of ischemic heart disease and type 2 diabetes mellitus is prescribed repaglinide.
A 53-year-old multiparous woman presents to establish care. Her past medical history is significant for hypertension and type 2 diabetes
Problem: A 21-year-old male sex worker with a history of HIV presents to the clinic with a single painless penile lesion
n 18-year-old woman with no relevant past medical history presents to the hospital with complaints of pain in her right hand.
Problem: A 17-year-old boy who has had a cough for 2 months presents with a worsening cough and green-colored sputum.
A 48-year-old man presents with a two-day history of non-productive cough. He denies any fever, chest pain, or nausea.