Question: What is the effect of the acidity of potato juice on the volume of foam

produced when hydrogen peroxide is added to potato juice?

In this investigation, the prediction that if the acidity of potato juice is decreased then the volume of

foam was increased was proven incorrect. Catalase is damaged by acid. The lowest foam volume

was 24 ml with the highest acidity, pH6, However the highest foam volume was an average of

42 ml with the second lowest acidity level,pH8 The third highest volume was 35 ml with the second

highest acidity level pH7, and the second lowest foam volume was 30 ml with the lowest

acidity level pH9.

Aloe Vera juice is gluten free.

your local wallmart or wwe shop.com

Carbonated water is water that has had carbon dioxide added to it under pressure. When the pressure is released (say when it is opened), it goes to a lower pressure and releases the carbon dioxide. The foam is an accumilation of carbon dioxide bubbles that float to the top. The juice probably has no affect on it. Its caused by a change in pressure.

Juice from grapes that are pressed, different from free run juice which comes out on its own or freely. Tends to be richer, have more color, and different flavors than free run juice.