which methods will help you properly identify ph with indicator paper? check all that apply. set a piece of…

which methods will help you properly identify ph with indicator paper? check all that apply. set a piece of ph paper in front of each solution before testing to keep organized. dip the ph paper into each test tube and lay it on the table to let it change color. use a transfer pipet to remove a few drops from the solution to drop onto the paper. wait a minute or so before reading color. use the same piece of indicator paper for each solution to conserve paper. done

which methods will help you properly identify ph with indicator paper? check all that apply. set a piece of ph paper in front of each solution before testing to keep organized. dip the ph paper into each test tube and lay it on the table to let it change color. use a transfer pipet to remove a few drops from the solution to drop onto the paper. wait a minute or so before reading color. use the same piece of indicator paper for each solution to conserve paper. done

Answer

Brief Explanations:

  • Setting pH - paper in front of each solution helps in organization.
  • Dipping pH - paper into the test - tube can contaminate the solution and laying it on the table may introduce impurities.
  • Using a transfer pipet to drop solution onto the paper is a proper and non - contaminating method.
  • Waiting for a minute allows the color to fully develop for accurate reading.
  • Using the same piece of indicator paper for each solution will give inaccurate results as the previous solution will affect the next test.

Answer:

A. Set a piece of pH paper in front of each solution before testing to keep organized. C. Use a transfer pipet to remove a few drops from the solution to drop onto the paper. D. Wait a minute or so before reading color.