Chemistry

Can someone please help me on this two Chemistry questions...they are from my lab....the lab was on Acids and Bases using Red Cabbage Indicator.

Q1- How consistent was the cabbage juice indicator for this lab? Discuss the limitations of using red cabbage juice as an indicator in comparison to the universal pH paper?
The first part of the question I know but it's the second part that I am stuck on!

Q2- What is the relationship (i.e. direct or inverse) between pH and hydrogen ion concentration? Remembering that pH= -log[H+]. Please explain.

Thanks so much for the help ;-) Online chemistry is so hard!

  1. 0
  2. 0
  3. 21
asked by Jessie
  1. On q1. pH paper can tell pHs over a wide range, rather accurately. Did the Cabbage juice do that?

    1. 0
    2. 0
    posted by bobpursley
  2. How consistent was the cabbage juice indicator for this lab? Discuss the limitations of using red cabbage juice as an indicator in comparison to the universal pH paper.

    1. 0
    2. 0
    posted by nicole

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Hi, I have few questions from a chemistry lab that i did, 1) I'm not sure whats the point of heating a nitrate (NaNO3) 2) I'm not sure why you add NaOH to NaNO3 after it has dissolved in water 3) I'm not sure why do we have to

    asked by Sherlique on December 20, 2016
  2. Chemistry

    1. Imagine that you work at a company that prepares chemical solutions. You are asked to label a solution to sell to different customers. One customer is a hospital, another is a chemistry lab at a university, and a third is a

    asked by SMS on September 10, 2014
  3. Biology

    I really need help with my science lab. I was sick when we did the lab on Thursday and Friday was a snowday so I did not get to get the observations off my peers. My teacher has allowed people one more day and I do not understand

    asked by Scott on March 5, 2007
  4. Lab in general

    I just read my syllabus for lab and I am kind of shocked at what it says. I do know that I have to write out procedures of the lab in my nbk before coming to lab but I just read that it says "You will NOT be allowed to refer to

    asked by ~christina~ on September 3, 2007
  5. Chemistry labs in highschool

    I was curious to know whether it was standardized practice to have labs for chemistry classes in highschool. I personally have never had labs for chemistry in highschool. In my state we have the Regents. You may or may not have

    asked by ~christina~ on August 23, 2007
  6. Chemistry Lab

    In chemistry we are doing a lab that involves crucibles and Mg ribbon, we have three days to complete the lab. Anyways do you think it would be alright to substitute the mass of the crucible we had the first day with the mass of

    asked by Anonymous on November 19, 2014
  7. Drbob222

    Can you please help me with some questions I have on my Chemistry lab?

    asked by Mandy on November 28, 2010
  8. Chemistry

    I did a lab in chemistry about weighing table salt and sand and mixing it with water and pouring it through a funnel. One of my lab quetions was, What are some possible sources of error in this activity? First of all, I don't know

    asked by Jennifer on August 28, 2010
  9. chemistry

    I did a lab on pressure and depth today. This lab was to simply submerge a plastic tube into a large graduated cynlinder to find the relationship between the two. I found that as the depth increases, so does the pressure. One of

    asked by CL on January 12, 2010
  10. Chemistry

    Hi! I am doing this chemistry lab of solubility curve of a solid investigation and this is for KCl. The purpose of this lab is to investigate the relationship between the solubility of potassium chloride and the temperature of its

    asked by Lori on February 19, 2013

More Similar Questions