Blue Litmus Paper Ph Scale

Sodium hydroxide is a base. A blue litmus paper turns red in acids while a red litmus paper turns blue in basic solutions. The blue paper changes to red indicating acidity somewhere between the ph range of 4 5 to 8 3.

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In general litmus paper is red below a ph of 4 5 and blue above a ph of 8 3.

Blue litmus paper ph scale.

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. Sulfuric acid is obviously acidic in nature. Initially litmus paper is either red or blue. It turns blue litmus paper red.

A lower ph means something is more acidic also known as a stronger acid. Litmus indicator solution turns red in acidic solutions blue in alkaline solutions and purple in neutral solutions. Ph scale diagram with corresponding acidic or alcaline values for common substances food household chemicals. A ph scale reading of 8 indicates a weak base.

Litmus paper color chart. Acids turn blue litmus paper red. A higher ph means it is more alkaline or a stronger base. Examples of litmus paper color changes.

Note that 8 3 is alkaline red litmus paper can indicate alkalinity with a change to blue. Chemistry classes will often use a litmus test to identify acids from bases. Blue litmus paper can indicate an acid with a ph between 4 and 5 or lower. Red litmus paper can show a base with a ph greater than 8.

It turns red litmus. Bases turn red litmus paper blue. A ph scale reading of 6 indicates a weak acid. Colorful vector illustration in flat style isolated on white background.

The table shows. Litmus paper comes as red litmus paper and blue litmus paper.

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