Acid Base and Buffer

A strong acid describes

• How concentrated it is.

• That it is almost completely ionised (donate all protons)

• It would have a high pH

• It would accept all free protons.

Blood has a pH value between 7.35 and 7.45. It would be classified as.

• Slightly acidic

• Slightly basic

• Alkaline

• Neutral

Tick the boxes that apply to a weak acid

• The pH is less than 7

• Very few acid molecules ionise (dissociate)

• The pH is slightly greater than 7

• Neutral

Tick the boxes that describe a strong base

• The pH is very high

• The pH is very low

• It feel slippery

• It has a lot of OH⁻ ions

The pH range of human blood is between

Tags

NGSS.HS-LS1-3

Tick all the boxes that describe stomach acid (gastric juice)

• Has a very low pH

• Has a very high pH

• Contains a strong acid that completely ionises / dissociates

• Is corrosive

Tick all the boxes that describe carbonic acid

• When carbonic acid loses a proton it forms the bicarbonate ion

• It is a strong acid

• Hardly any protons are lost, most remains in the form of carbonic acid.

• It is part of the blood buffering system.

Tags

NGSS.HS-LS2-5

If the pH of blood were high it means that ...

• There are too many protons (H⁺)

• There are too few protons (H⁺)

• The patient has acidosis

• The patient has alkylosis

If you had acid reflux you could try

• An aspirin under the tongue

• HCl

• A lemon drink

• Mg(OH)₂

If your patient had alkylosis how would the blood buffering system react.