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

Author Question: What is the mass/vol % ethanol in an ethanol-water solution with a density of 0.875 g/mL and ... (Read 236 times)

mydiamond

  • Hero Member
  • *****
  • Posts: 804
on: Jul 8, 2021

Question 1

What is the freezing point of a solution of 7.15 g MgCl2 in 100 g of water? Kf for water is
◦ -0.140 °C
◦ -1.40 °C
◦ -2.80 °C
◦ -4.18 °C

Question 2

What is the mass/vol % ethanol in an ethanol-water solution with a density of 0.875 g/mL and containing 65.0% ethanol by volume? The density of pure ethanol is 0.789 g/mL.
◦ 90.2% ethanol (mass/vol)
◦ 56.9% ethanol (mass/vol)
◦ 51.3% ethanol (mass/vol)
◦ 58.6% ethanol (mass/vol)
◦ 74.5% ethanol (mass/vol)
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by mydiamond on Jul 8, 2021

ngr69

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 8, 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 39% of students answer this correctly


mydiamond

  • Member
  • Posts: 804
Reply 2 on: Jul 8, 2021
Excellent

epscape

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

The ethanol molecule showing two carbon atoms, six hydrogen atoms, and one oxygen atom. The ethanol molecule showing two carbon atoms, six hydrogen atoms, and one oxygen atom.
Pneumonia patient’s chest x-ray. Note the irregular areas of density. Pneumonia patient’s chest x-ray. Note the irregular areas of density.
How many grams of tartaric acid, H2C4H4O6, (molar mass = 150.10 g) are needed to How many grams of tartaric acid, H2C4H4O6, (molar mass = 150.10 g) are needed to
To make a 3.00 m solution, one could take 3.00 moles of solute and add To make a 3.00 m solution, one could take 3.00 moles of solute and add
Video: Neural regulation of mechanical digestion- CNS voluntary, ANS & ENS controlled involuntary movements

For a complete list of videos, visit our video library