Question

you are interested in confirming how much fluoride is in toothpaste. one tube of toothpaste lists its ingredients as glycerol, sorbitol, sodium laurel sulfate, calcium carbonate, 0.15% sodium fluoride and a trace of hydrogen peroxide.(c) What substances comprise the sample

Answer 1

Sodium fluoride

Step-by-step explanation:

Fluoride is a common chemical found in toothpastes. In this tube of toothpaste, let's examine the constituents of the ingredients involved

glycerol, C₃H₈O₃⇒ carbon, hydrogen and oxygen

sorbitol, C₆H₁₄O₆⇒ carbon, hydrogen and oxygen

sodium laurel sulfate, CH₃(CH₂)₁₀CH₂(OCH₂CH₂)ₙOSO₃Na ⇒ carbon, hydrogen, oxygen, sulfur, sodium

sodium fluoride, NaF ⇒ sodium and fluorine/fluoride

hydrogen peroxide, H₂O₂ ⇒ hydrogen and oxygen

From the above, the substance/ingredient that comprises the chemical (fluoride) is sodium fluoride