Bath Bomb

[deleted-367874]

Hi
I am doing a project on bath bombs and measuring how much fizz, changing the amount of baking soda produces. Can someone guide me how to correctly measure the fizz or the amount of CO2 produced? I want to be as accurate as possible and I do not want to just assess it visually.

[deleted-386403]

Hi ashima,

You can measure the amount of CO2 produced by collecting it in a way where the gas can't escape. You do accomplish this by reacting the baking soda in a flask with a rubber stopper that can seal the top of the flask. The rubber stopper you use needs to have a hole on the top of it so that you can insert some rubber tubing that will lead all of the gas produced to a second container filled with water.

Before you carry out the experiment, make sure you place an inverted graduated cylinder that is filled with water in the second container that also has water. You should have the rubber tubing from the flask lead into the inverted graduated cylinder. When the experiment is carried out, the CO2 gas should push out the water from the graduated cylinder, and you can measure the volume of gas produced based on the amount of water displaced from the graduated cylinder.

I've attached a link that might be useful to you:
http://www.bbc.co.uk/schools/gcsebitesi ... evision/1/

If you have any more questions feel free to ask me, my name is Stephen.

Sounds like a fun project! Good Luck!

[deleted-367874]

Thanks for your help!!

[deleted-367874]

Stephen

Sorry to bother you again..

Is there a good website where I can order the measuring cylinder? and other supplies to measure CO2 produced?

Again. Thanks in advance for your help.

[deleted-367874]

Stephen

Can you recommend a supply store where I can order all the supplies needed to measure the Co2 produced?





Hi ashima,

You can measure the amount of CO2 produced by collecting it in a way where the gas can't escape. You do accomplish this by reacting the baking soda in a flask with a rubber stopper that can seal the top of the flask. The rubber stopper you use needs to have a hole on the top of it so that you can insert some rubber tubing that will lead all of the gas produced to a second container filled with water.

Before you carry out the experiment, make sure you place an inverted graduated cylinder that is filled with water in the second container that also has water. You should have the rubber tubing from the flask lead into the inverted graduated cylinder. When the experiment is carried out, the CO2 gas should push out the water from the graduated cylinder, and you can measure the volume of gas produced based on the amount of water displaced from the graduated cylinder.

I've attached a link that might be useful to you:
http://www.bbc.co.uk/schools/gcsebitesi ... evision/1/

If you have any more questions feel free to ask me, my name is Stephen.

Sounds like a fun project! Good Luck!