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 180 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
Excellent

jamesnevil303

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

The Structure of an Old Low-Mass Star The Structure of an Old Low-Mass Star
Ketone structure and Acetoacetic acid Ketone structure and Acetoacetic acid
pH vs. moles base added per mole acid pH vs. moles base added per mole acid
Acid–Base Balance Acid–Base Balance
With solution With solution
Mass Extinctions Mass Extinctions
Video: Metabolic Rate, Heat and Thermoregulation - response to heat and cold stresses

For a complete list of videos, visit our video library