A 125 mL flask was obtained. The square of aluminum was fashioned over the flask by laying the foil over the mouth and folding the sides down. A pin was then obtained and was used to poke a tiny hole in the center of the aluminum cap.…
Abstract: A 50mL (we used 100mL) volumetric flask was used to determine the amount of sugar in a can of Coke per mL in 5 different solutions. Using the calibration curve we determine the amount of sugar per mL in a can of coke. This experiment concluded that there is 43.83g of sugar in a 12oz can of Coke.…
2. To determine the densities of water, an unknown liquid, a rubber stopper, and an unknown rectangular solid.…
5) The atomic umber of sulfur is 16. Sulfur combines with hydrogen sulfide. Based on the electron configuration of sulfur, we can predict that the molecular formula of the compound will be…
If an air bag has a volume of 36 L and is to be filled with nitrogen gas at a pressure of 1.15 atm at a temperature of 26.0°C, how many grams of NaN3 must be decomposed?…
In this experiment we were wanting to find the specific heat of an unknown metal and determining what metal it was by using the formula q=c X m X change of temperature. We did two trials to compare the two and see what we come up with.…
Paul Fitts’ was the first to discover the relationship between the speed of movement and accuracy requirements. This has become one of the most fundamental principles of motor control. Fitts claims a relationship between task difficulty and movement time. He quantified task difficulty as “index of difficulty” which consists of the ratio of twice the amplitude over width of the target (2Amplitude/Width). This relationship states that when movement amplitude decreases or when target width increases movement time is shorter (Fitts, 1954). Fitts found that the relationship between amplitude and width was given by the equation: MT= a + b[log2(2A/W)]. The empirical constants a and b represent the y-intercept and the slope (Schmidt & Lee, 2011).…
Instead of selecting classes that are known to be "easy," choose those that are challenging and interesting. There is great satisfaction in pushing your mental limits. A challenging course of study will teach you much more than a simple one that fails to engage you. It also improves your networking opportunities.…
.2400 grams of the unknown compound. This is done in duplicate and purple-tinted precipitates are placed in Gooch crucibles. The precipitates are suction dried using ethyl alcohol then acetone to…
Double-replacement reactions commonly occur when one of the products is not soluble and precipitates out of the reaction solution as a solid:…
ESSAY. Write your answer in the space provided or on a separate sheet of paper. 1) Explain the difference between a qualitative and a quantitative measurement. Provide examples to illustrate this difference. Answer: A qualitative measurement is a measurement that gives descriptive, nonnumeric results; a quantitative measurement is a measurement that gives definite, usually numeric results. "The rock is heavy" would be a qualitative measurement. "The rock weighs 110 grams" would be a quantitative measurement.…
1. Determine the mass of the samples to the nearest 0.01 gram. Record. 2. Fill a 100 ml graduated cylinder about three quarters full with water. Measure the volume, and record as “volume of water alone” in the data table. Tilt the cylinder and carefully slide one of the samples down the side. Make sure the sample is completely submerged in the water. Measure the volume and record as “volume of water + sample” in the data table.…
reports of their laboratory work in such a fashion that the reports can be readily reviewed.…
Heat always flows spontaneously from matter at a higher temperature to matter at a lower temperature.…
Lastly, I am a strong academic student with a plan to go to college, therefore, taking the most challenging courses I can take in high school is a wise plan that I have thought out. Being in a honors course helps me to be more academically inclined. Rigorous and challenging work is the best way to prepare for college, and is heavily weighted by college admissions. Many colleges recalculate applicants’ GPAs, giving extra points for honors courses.…