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I'm not aware of them having a shelf life. I know that the ones in my chemistry set when I was a kid lasted years. If they've faded to grey, you might be able to regenerate them by exposing them to a weak dilute acid or base (depending on what color you want).
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∙ 15y ago
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What substance is used to determine the presence of an acid or base?
by using an indicator like litmus paper!!!
What color litmus paper is used to test acids?
Litmus paper.
What is the action of sulphuric acid on red litmus?
Blue litmus is used to test acidic solutions.
Why would a boyfriend be given a litmus test?
because...
What color litmus paper measures acidity?
You use the blue litmus to to test an acid other wise no result of testing an acid
What test is done to determine pH?
You can use Litmus strips, which you can buy from a variety of places. TEEHEE.
What is shelf life of urine collected for a drug test?
120 days.
What substance is used to determine the presence of an acid or base?
by using an indicator like litmus paper!!!
How can you test pH in milk. Is litmus paper sufficient?
we can test pH in milk by pH meter.No litmus paper is not sufficiet.
What color litmus paper is used to test acids?
Litmus paper.
How do you do a pregnancy test with litmus paper?
You cannot predict pregnancy with litmus paper. litmus paper detect pH not HCG
What is a litmus paper and how to use it?
A litmus paper is a indicator that is used to test for acids or bases
What COLOR of litmus paper do you need to test pH level?
Blue litmus paper
What colour will it be when a acidic is test with a blue litmus paper?
litmus paper turns blue litmus red when tested on an acid and red litmus blue when tested on a base
What diabetes test strips are compatible with other diabetes testing machines?
The diabetes test strips that are compatible with testing machines include Accu-Chek Active Blood Glucose test strips, Bayer Corporation Contour 50's Test strips, and Bayer Breeze 2 Blood Glucose Test Strips. All of which come in a 50 count box. You can visit www.libertymedical.com/testing to receive test strips.
What is the action of sulphuric acid on red litmus?
Blue litmus is used to test acidic solutions.
Sodium is readily oxidized by oxygen gas if the product of the reaction were dissolved in water what would be the color the litmus for a litmus test?
Sodium is readily oxidized by oxygen gas. If the product of the reaction were dissolved in water, the color of the litmus for a litmus test would be blue. The red litmus paper will turn blue.
