« previous next »

Author Question: A solution contains 20 mL of ethanol in a total volume of 100 mL. The concentration of this solution ... (Read 157 times)

Coya19@aol.com

  • Hero Member
  • *****
  • Posts: 601
on: Aug 27, 2018
A solution contains 20 mL of ethanol in a total volume of 100 mL. The concentration of this solution is
 
  A) 2.0 M.
  B) 2.0  by mass.
  C) 20  by mass.
  D) 20  by volume.

Question 2

Recycling of hazardous materials is important.
 
  Indicate whether the statement is true or false


Ksanderson1296

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

TRUE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Total hip prosthesis. Total hip prosthesis.
The Spiral (Solution) The Spiral (Solution)
A Breathalyzer is used to measure a person's blood alcohol concentration (BAC) A Breathalyzer is used to measure a person's blood alcohol concentration (BAC)
Nursing: A Concept-Based Approach to Learning, Volume I Nursing: A Concept-Based Approach to Learning, Volume I
Find the solution set of each of the following equations and inequalities. Find the solution set of each of the following equations and inequalities.
Male to Female Sex Ratio at Birth vs. PCB Concentration in Maternal Serum Male to Female Sex Ratio at Birth vs. PCB Concentration in Maternal Serum
Video: Types of Shock (Part 2 of 2)

For a complete list of videos, visit our video library