A student failed to cut the aluminum sample into small pieces but rather left it as one large piece. How would this oversight affect the progress of completing the experimental procedure? Explain.
The well-known fact is that the surface area is more in the case of a large piece of material than that in the case of small pieces of the same material.
Hence, the rate of reaction is higher in the case of a large piece of material than that in the case of small pieces of the same material.
Here, the material is aluminum. So, this affects the progress of completing the experiment at a slow rate, i.e. the experiment takes place comparatively slowly, i.e. the experiment requires comparatively more time.
A student failed to cut the aluminum sample into small pieces but rather left it as...
QUESTIONS (Submit your answers on a separate sheer if necessary Circle the questions that have been assigned 1. The aluminum sample is not cut into small pieces but rather left as one large piece. a. How will this oversight affect the progress of completing the experimental procedure? Explain. b. Will the percent yield of the alum be too high, too low, or unaffected by the oversight? Explain. 2. Aluminum pieces inadvertently collect on the filter a. If left on the...
Aluminum metal from beverage cans can be used to synthesize alum, which is used as a food additive and in water purification. The experimental procedure specifies that the aluminum used in the synthesis be cut into tiny pieces. What effect would not cutting the starting piece of aluminum into small pieces have? Question 5 options: A) The reaction would proceed more quickly due to the aluminum's low surface area, causing an unstable and dangerous reaction. B) The continuous piece of...
Student Name Course/Section Date Instructor POST-LAB QUESTIONS I. Explain how each of the following experimental errors would affect the value for the percentage of magnesium calculated in this experiment. (a) The sample was not dried completely at the end of the experiment. (b) A small piece of magnesium was lost after the weighing, but before the reaction was performed.
A teacher decided to bring a jar of 530 pieces of small candy to his 100-student classroom so students could practice estimation. The students were told that whoever had the closest guess would win the candy. Suppose we took a random sample of one third of the students and calculated the sample mean of their guesses. The distribution of individual guesses had a mean of 400 pieces of candy and a standard deviation of 3,000 pieces of candy (the students...
Make sure that the following questions are answered in your submitted lab report. A student has an unknown liquid the theoretical density of which is 1.34 g/mL. He determines the experimental density of the liquid using the method described in the procedure for this experiment Tell whether each of the following errors would cause the experimental value of the density of the liquid to be too large, too small, or unchanged relative to the true value. Explain your reasoning in...
Student Name Course/Section Instructor Date POST LAB QUESTIONS luminum is 0.90 J/g-. How much heat must be added to a 245-gram of this heat is used to heat the aluminum pot containing 556 grams of water to raise l. The spec the temperat pot? 2. For each of the following experimental errors clearly state if the error would increase, decrease, or have no effect on the specific heat that you determined in today's experiment You must explain your reasoning. (e)...
do #2
Post-Laboratory Questions A student carried out the procedure above and consistently titrated at a relatively rapid rate for all three trials. a) Explain two possible problems that might ensue from adding the titrant too quickly. b) How would this affect reporting the concentration of the unknown?. A student carried out the above procedure in triplicate. The volume of titrant consumed varied significantly from one trial to the other (+1.00 mL). Explain how these results would affect the accuracy...
Suppose you are a graduate student studying primate sociality (the area that examines reasons why primates live in groups). You observed a group of howler monkeys in northern Argentina to determine whether competition over resources or predation avoidance is the primary factor favoring group living. (a) First, describe both the Resource Defense Model and the Predation Avoidance Model. (b) One piece of data you obtained was that larger howler groups had larger territories. If the howlers formed groups for resource...
Suppose you are a graduate student studying primate sociality (the area that examines reasons why primates live in groups). You observed a group of howler monkeys in northern Argentina to determine whether competition over resources or predation avoidance is the primary factor favoring group living. (a) First, describe both the Resource Defense Model and the Predation Avoidance Model. (b) One piece of data you obtained was that larger howler groups had larger territories. If the howlers formed groups for resource...
1. The fracture stress of your sample (in units of
N m−2) is given by dividing the load (in N) at the
fracture point by the cross-sectional area of the original sample
(in m2). The typical thicknesses of plastic bags are
8 × 10−6 m for flimsy bags and 7 × 10−5 m
for thicker bags. Select one of these values and use it to obtain
an estimate for the fracture stress of your bag. Ensure you state
the thickness...