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

Author Question: Calculate the molality of a 21.6 (by mass) aqueous solution of phosphoric acid (H3PO4 ). A) 2.81 ... (Read 181 times)

OSWALD

  • Hero Member
  • *****
  • Posts: 580
on: Aug 27, 2018
Calculate the molality of a 21.6 (by mass) aqueous solution of phosphoric acid (H3PO4 ).
 
  A) 2.81 m
  B) 276 m
  C) 5.62 m
  D) 1.41 m
  E) The density of the solution is needed to solve the problem.

Question 2

Which of the following is a positive association with the study of chemistry?
 
  A) Chemistry is relevant to our daily lives.
  B) Chemistry offers career opportunities.
  C) Chemistry has biomedical applications.
  D) Chemistry benefits society.
  E) all of the above


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lgoldst9

  • Sr. Member
  • ****
  • Posts: 372
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

E


OSWALD

  • Member
  • Posts: 580
Reply 2 on: Aug 27, 2018
YES! Correct, THANKS for helping me on my review

mjenn52

  • Member
  • Posts: 351
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Fate of the Amino acid carbon skeletons Fate of the Amino acid carbon skeletons
The d-aminolevulinic acid syntheses reaction The d-aminolevulinic acid syntheses reaction
Specific amino acid–nucleotide contacts for cI and Cro repressors Specific amino acid–nucleotide contacts for cI and Cro repressors
Acid–Base Balance Acid–Base Balance
Which of the buffers below would be the BEST choice for making a solution capable of buffering ... Which of the buffers below would be the BEST choice for making a solution capable of buffering ...
Draw a complete stepwise mechanism for the oxidation of benzil from benzoin using nitric acid. Draw a complete stepwise mechanism for the oxidation of benzil from benzoin using nitric acid.
Video: Non-polar compounds - insolubility

For a complete list of videos, visit our video library