Blue Litmus Paper Ph Scale

Blue litmus paper can indicate an acid with a ph between 4 and 5 or lower.

Blue litmus paper ph scale.

The table shows. Examples of litmus paper color changes. Litmus indicator solution turns red in acidic solutions blue in alkaline solutions and purple in neutral solutions. Chemistry classes will often use a litmus test to identify acids from bases.

It turns blue litmus paper red. Litmus paper comes as red litmus paper and blue litmus paper. Bases turn red litmus paper blue. The blue paper changes to red indicating acidity somewhere between the ph range of 4 5 to 8 3.

A blue litmus paper turns red in acids while a red litmus paper turns blue in basic solutions. Initially litmus paper is either red or blue. In general litmus paper is red below a ph of 4 5 and blue above a ph of 8 3. Sodium hydroxide is a base.

Note that 8 3 is alkaline red litmus paper can indicate alkalinity with a change to blue. A ph scale reading of 8 indicates a weak base. Sulfuric acid is obviously acidic in nature. A lower ph means something is more acidic also known as a stronger acid.

It turns red litmus. Ph scale diagram with corresponding acidic or alcaline values for common substances food household chemicals. Litmus paper color chart. Acids turn blue litmus paper red.

A ph scale reading of 6 indicates a weak acid. To test the ph of a substance dip a strip of litmus paper into the solution or use a dropper or pipette to drip a small amount of solution onto the litmus paper.