This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The term "proof" is defined as twice the percent by volume of pure ethanol in solution. Thus, a ... (Read 72 times)

dmcintosh

  • Hero Member
  • *****
  • Posts: 517
on: Mar 21, 2021

Question 1

The solubility of O2 in water is 0.590 g/L at an oxygen pressure of around 15.5 atm. What is the Henry's law constant for O2 (in units of mol/L·atm)?

◦ 3.81 × 10–2
◦ 1.19 × 10–3
◦ 8.41 × 102
◦ 2.86 × 10–1
◦ None of these are within 5% of the correct answer.

Question 2

The term "proof" is defined as twice the percent by volume of pure ethanol in solution. Thus, a solution that is 95% (by volume) ethanol is 190 proof. What is the molarity of ethanol in a 92 proof ethanol/water solution?
 
density of ethanol
= 0.80 g/cm3
 
density of water
= 1.0 g/cm3
 
mol. wt. of ethanol
= 46 g/mol
 


◦ 0.46 M
◦ 0.80 M
◦ 0.92 M
◦ 8.0 M
◦ 17 M
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by dmcintosh on Mar 21, 2021

Laurenleakan

  • Sr. Member
  • ****
  • Posts: 309
Reply #1 on: Mar 21, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly


dmcintosh

  • Member
  • Posts: 517
Reply 2 on: Mar 21, 2021
Gracias!

meganmoser117

  • Member
  • Posts: 303
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Term neonate. Term neonate.
William Morris, Page from a specimen book with sample proof letters, Kelmscott Press. William Morris, Page from a specimen book with sample proof letters, Kelmscott Press.
Full-term Twin Full-term Twin
Trigonometric Proof Trigonometric Proof
How many moles of AgCl are contained in 244 mL of 0.135 m AgCl solution? The density of the ... How many moles of AgCl are contained in 244 mL of 0.135 m AgCl solution? The density of the ...
Cytological proof from Zea mays that recombination results from crossing over Cytological proof from Zea mays that recombination results from crossing over
Video: New DNA Strand Replication

For a complete list of videos, visit our video library