In this experiment, the molecular weight of a condensed vapor was found through a procedure using an unknown liquid. The flask before adding the unknown liquid in was full of air. After the beaker full of water started to boil the flask was examined until the unknown liquid was completely vaporized. At that exact point the flask contained all vapor. At the final weighing the flask contained condensed vapor and air. There is always a chance for error. Some sources of error could have come with completing this lab over an open water bath and some water vapor may have been in place. Also, too much vapor could have escaped and the experiment might not have been stopped quick…
A graduated cylinder was used for measuring the volumes of the liquid. When measuring the volumes be sure to be eye level with the meniscus. Any other position when looksing at the container will cause an error in the experiment.…
In this experiment, we first measured the mass of an empty flask using the balance for our…
The lab was not infallible, however, as the samples could have been easily contaminated, mixed, or out of order. Also, burning the woods splints caused the flames to appear orange, affecting the results in several possible ways. The results seemed similar to each other and many of them seemed to share a slightly orange hue, perhaps because the splint was being burned unintentionally at the same time. The first unknown was identified as Calcium due to the similarities in color and the second unknown was identified as strontium for the same reason. For future experimenters, the solutions should be labeled so that in the future, the chance for error is dramatically…
beaker. Three trials were done and measurements were recorded. The purpose of the second experiment…
The very first experiment had the hypothesis that the temperature of a burner flame can be controlled by adjusting the ratio of gas to air in the mixture to be burned. During this experiment, my partner and I gathered our materials of the paper matches, straight pins, copper wire, laboratory burners, rubber tubing, tongs, and evaporating dish. Making sure we had our safety goggles on and the material we needed, we connected the Tirrill burner into the gas and lit the burner with the match, having the air vents closed and the gas on. When the burner was lit, we noticed that the flame had a luminous, smoky yellow appearance. We then used a pair of tongs to hold the evaporating dish towards the top of the flame for 10 to 20 seconds. We observed…
Hypothesis: For this Lab, my hypothesis was that the candles are going from solid to gas because of a high and quick rise in temperature.…
Procedure: Using distilled water, premeasured containers and objects determine displacement of fluids and density of objects. Use ice and heat measure temperatures in Celsius, Fahrenheit and Kelvin.…
Suffocation is the main cause of death during fire, and by the help of this experiment we can know that when there is a fire and you are standing, you are easily suffocate and when you duck you can avoid the suffocation because during a fire the warmer air particles goes up so the smoke and the oxygen also goes up that can cause suffocation while the colder air goes down. So it is better to duck during fire to avoid suffocation. Like in the experiment, the longest candle goes the fire out first because it has no more space that it already reached the top of the beaker and the water is also high. And the shortest candle’s light goes out last because the shortest candle has more space than the longest candle so it has more oxygen to use and it will last longer than the taller…
B. Chemical change, the burning candle released smoke showing how a new chemical was made.…
Each section is telling morals of mistakes passing through generation after generations and detailing different character traits. Such as The Red Candle and the invisible strength that both the mother and daughter share, the fear of incoming doom that contributes to the daughter's failed marriage, standing up with a strong voice for one's own good will that the mother fails to teach her daughter and results in her daughter allowing her husband to take complete control of the relationship. All of them are related in the issues of mixed heritage parents and failing to communicate the necessary information to their daughters that have resulted in their current predicaments; however, how similar their daughters are to themselves despite the culture…
The wick used in a candle is an absorbent twine and must have strong capillary action. When the wick is lit, the wax around the wick will melt due to the heat of the flame. The capillary action of the wick will absorb the melted wax and pull it upwards. When the wax is exposed to the flame, it will vaporize and the wax vapor burns. The wick does not burn as quickly, because the vaporizing wax will help to cool the temperature of the wick and protect it.…
I believe the candle contains carbon and hydrogen atoms. When we burn the candle these two elements react with the oxygen on the air burns the candle. So based on my experiment the yellow can have molten wax. So if I looked outside the environment lots of animals live in the atmosphere. The dog, bird, the sky and clouds are all live on the same athmosper.sky could be blue and may represent the bottom part of the candle, the bird is small animal and clouds are white and carry hydrogen atom.…
A candle is a molded piece of paraffin wax, tallow, or other fatty substance, usually cylindrical in shape, with a wick running through it. The encased wick burns slowly, giving light, fragrance, and proving decoration.…
As explained in the conclusion of the experiment, in What a gas! carbon dioxide is produced. This is what blows up the balloon. The color change in the red cabbage water is a natural indicator. It shows there is a change in pH from acid to alkaline.…