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

Author Question: How many oxygen atoms are in 3.00 g of sodium dichromate, Na2Cr2O7? A) 0.0801 oxygen atoms B) ... (Read 115 times)

jilianpiloj

  • Hero Member
  • *****
  • Posts: 521
on: Aug 27, 2018
How many oxygen atoms are in 3.00 g of sodium dichromate, Na2Cr2O7?
 
  A) 0.0801 oxygen atoms
  B) 9.85  1020 oxygen atoms
  C) 6.90  1021 oxygen atoms
  D) 4.83  1022 oxygen atoms

Question 2

Ka for HX is 7.5  10-12. What is the pH of a 0.15 M aqueous solution of NaX?
 
  A) 7.97
  B) 1.96
  C) 6.00
  D) 8.04
  E) 12.10


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xoxo123

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

E


jilianpiloj

  • Member
  • Posts: 521
Reply 2 on: Aug 27, 2018
YES! Correct, THANKS for helping me on my review

kjohnson

  • Member
  • Posts: 330
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Factors affecting determination of pulse oxygen saturation Factors affecting determination of pulse oxygen saturation
Sodium Potassium Pump Sodium Potassium Pump
Administer Oxygen Administer Oxygen
A conventional zirconia oxygen sensor can only reset to exhaust mixtures that are richer or leaner ... A conventional zirconia oxygen sensor can only reset to exhaust mixtures that are richer or leaner ...
Sodium’s chief role is regulation of fluid balance Sodium’s chief role is regulation of fluid balance
Sodium is so widely available in foods that you don’t have to go out of your way to meet your ... Sodium is so widely available in foods that you don’t have to go out of your way to meet your ...
Video: Helper T cell receptors, activation, proliferation, differentiation & action

For a complete list of videos, visit our video library