Acid base indicators

Which of the following substances is an acid?

• Vinegar (pH 2.0)

• Shampoo (pH 7.1-10.0)

Which of the following substances is an acid?

• Lemon juice (pH 2.4)

• Lye (pH 13.0)

Which of the following substances is an acid?

• Human blood (pH 7.4)

• Bananas (pH 4.5)

Which of the following substances is an base?

• Baking Soda (pH 8.3)

• Butter (pH 6.2)

Which of the following substances is an base?

• Milk of Magnesia (pH 10.5)

• Butter (pH 6.2)

Which of the following substances is an base?

• Tomatos (pH 4.5)

• Tooth Paste (pH 9.0)

Which of the following indicators should be used to find a base with a pH of 8?

• Phenophthalein

• Methyl Orange

Which of the following indicators should be used to find a base with a pH between 6-8?

• Bromothymol Blue

• Methyl Red

Which of the following indicators should be used to find a base with a pH between 2?

• Thymol Blue

• Phenolphthalein

A high concentration of H⁺ ions means that the solution is

• Acidic

• Basic