when you hold a hydrogen filled pipet bulb horizontally with its mouth about 1 cm from a falme while gently squeezing what would you observe?
a. the flame goes out
b. a gentle pop and the flame may have been blown out
c. the flame got bigger
d. nothing happened
I think that the flame got bigger but Im not sure if i did this lab correctly. any ideas what the reaction would or should have been?
You should have observed b.
why would my flame have looked bigger what do you think i was doing wrong?
I wasn't there. I don't know. The only thing I can think of is wind (air currents) may have fanned the flame.
To determine the reaction when holding a hydrogen-filled pipet bulb horizontally near a flame while squeezing it gently, we can consider the properties of hydrogen gas. Hydrogen is highly flammable and, when exposed to a flame, it can react in an interesting manner.
In this case, when you hold the hydrogen-filled pipet bulb near a flame and squeeze it gently, the reaction that is expected to occur is known as a "pop" or a "mini-explosion." This is because the hydrogen gas inside the bulb reacts with oxygen in the air and combusts. The combustion of hydrogen gas produces a small explosion and may cause the flame to go out temporarily.
So, based on this information, option (b) "a gentle pop and the flame may have been blown out" seems to be the most accurate answer.
It's important to note that working with flammable gases, such as hydrogen, can be dangerous. It is crucial to follow proper safety guidelines when conducting experiments involving flammable materials and always exercise caution to prevent accidents. If you are unsure about your lab procedure or have concerns, it's best to consult your teacher or a lab supervisor for guidance.