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

Author Question: Why should you use a new Pasteur pipette each time you use a different ... (Read 40 times)

fasfsadfdsfa

  • Hero Member
  • *****
  • Posts: 554
on: Aug 23, 2018
Why should you use a new Pasteur pipette each time you use a different solvent?

Question 2

What is the molecular weight of Compound X given the following information?  The density of Compound X is 1.32 g/mL.  0.520 mL of Compound X is equal to 1.00 mmol.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mcni194

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Aug 23, 2018
Answer to Question 1

You should avoid cross-contaminating one solvent with another. The easiest way to accomplish this is by always using a new Pasteur pipette.

Answer to Question 2

(0.520 mL/1.00 mmol)(1.32 g/mL)(1000 mmol/mol) = 686 g/mol


fasfsadfdsfa

  • Hero Member
  • *****
  • Posts: 554
Reply #2 on: Aug 23, 2018
Both answers were spot on, thank you once again


mcni194

  • Sr. Member
  • ****
  • Posts: 311
Reply #3 on: Aug 23, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

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

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called
This portrait of Thomas Jefferson is considered an accurate likeness, painted when he was thirty-sev This portrait of Thomas Jefferson is considered an accurate likeness, painted when he was thirty-sev
Time Estimates for Specific Office Procedures Time Estimates for Specific Office Procedures
Rockin' In Time, 9th Edition Rockin' In Time, 9th Edition
Continental Drift: An Idea Before Its Time Continental Drift: An Idea Before Its Time
Disitive Time For Fruits Disitive Time For Fruits
Video: Kidney Stones

For a complete list of videos, visit our video library