what is the ph of toothpaste?
Is KNO3 an acid or a base? The average pH level of nine toothpastes tested was 6.83 (slightly acidic). They had a range of pH levels, from 4.22 (acidic) to 8.35 (slightly alkaline or basic). Seven of these measured within one point of neutral (a level of seven). Toothpastes containing fluoride, sodium lauryl sulfate, sugar and harsh abrasives are more acidic than those without these ingredients.
This procedure is conducted after the experiment or study has been concluded. Debriefing involves a structured or semi-structured verbal conversation between the researcher and the subjects whereby an array of topics are addressed and discussed, and the subjects are given an opportunity to ask questions.