What is the mass of the flask with the vinegar inside and the balloon attached grams?
What is the mass of the flask with the vinegar inside and the balloon attached grams?
Answer: 200 grams, because all the atoms remain in the balloon or flask.
What happens to some of the mass when bubbles are formed during the chemical reaction between vinegar and baking soda in an open system?
A chemical reaction takes place when vinegar and baking soda are mixed. One of the new substances formed is carbon dioxide gas. If the carbon dioxide gas is contained, the mass of the substances will stay the same according to the Law of Conservation of Mass.
Why is the balloon or a lid on a flask important when looking for Conservation of Mass?
The law of conservation of mass indicates that mass cannot be created nor destroyed. This means the total mass of reactants in a chemical reaction will equal the total mass of the products. For this reason, balloons or zip lock bags may be used to collect the gas and preserve the mass.
What happens to the weight of the flask as the baking soda and vinegar mix?
When you added the baking soda to the vinegar, the two combined to make carbon-dioxide gas, which inflated the balloon. The expansion of the balloon changed the weight of your sealed flask because you and your entire experiment are submerged in a fluid: air. Just like water, air is a fluid, and fluids buoy up objects.
Why does it matter how much vinegar and baking soda are added at a time in this experiment?
Adding vinegar to baking soda gives you an immediate reaction. Adding baking soda to vinegar, the reaction is delayed, but then fizzes the same amount. More vinegar is better. A 12 to 1 ratio of vinegar to baking soda caused a fizzing explosion!
Is breathing helium bad for you?
Breathing in pure helium can cause death by asphyxiation in just minutes. Inhaling helium from a pressurized tank can also cause a gas or air embolism, which is a bubble that becomes trapped in a blood vessel, blocking it. The blood vessels can rupture and hemorrhage.
How long do helium tanks last?
As long as the green tank valve is closed tightly between uses, the helium should remain preserved for up to one year from initial use.