Search
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

CHEM 121 pre-lab - Speech or Presentation Example

Summary
For word problems: Use good scientific expression. Make your sentences short and clear. Neatness counts, as does spelling. Show your work for numerical problems. If the answer is very large or very…

Extract of sampleCHEM 121 pre-lab

Download file to see previous pages... (Hints: volume = area x thickness. 1 mL = 1 cm3) Express your answer in cm2 and in miles2.
7. Let’s assume that your secondary education has led you to rob armored cars. In your latest heist, if you were faced with bags of coins that weighed the same, which bag would you take: pennies, nickels, dimes, or quarters? Which bag contains more money? Important data: a penny weighs 3.09 g, a nickel weighs 4.88 g, a dime weighs 2.25 g, and a quarter weighs 5.68 g. (Naturally, show your work for full credit.) Hint: calculate the monetary density of each coin.
Clearly monetary density of dimes is the highest and therefore, I would take the bag containing dimes as it contains more money. However, if I can afford to take one more bag I will not like to leave the quarters bag as well.
8. What would be the effect on your calculated value of the density of water if there was an air bubble in the pipet when you transferred the water into the empty vial? Would the value be higher or lower or would there be no change? Explain your answer
If there was an air bubble in the pipet while transferring the water in the vial for density measurement, the measured value of density will be lower than the actual value as the volume has been measured on higher side erroneously due to entrapped air bubble.
9. What would be the effect on your calculated value of the density of water if “empty” vial had not been completely dried before weighing? Would the value be higher or lower or would there be no change? Explain your answer
The measured value of density of water will not be affected in this case as the mass of empty vial is deducted to calculate the mass of the measured volume of water. Therefore, whether the vial was completely dry or not will not affect the ...Download file to see next pagesRead More
Cite this document
• APA
• MLA
• CHICAGO
(“CHEM 121 pre-lab Speech or Presentation Example | Topics and Well Written Essays - 500 words”, n.d.)
(CHEM 121 Pre-Lab Speech or Presentation Example | Topics and Well Written Essays - 500 Words)
https://studentshare.org/miscellaneous/1562146-chem-121-pre-lab.
“CHEM 121 Pre-Lab Speech or Presentation Example | Topics and Well Written Essays - 500 Words”, n.d. https://studentshare.org/miscellaneous/1562146-chem-121-pre-lab.
Click to create a comment or rate a document
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Technology and its Backlashes
Although it is an undeniable fact that science succeeded in creating a more comfortable and sophisticated world, it is similarly an undeniable fact that science is one of the major factors in making possible the extinction of the human race (Russell and Bone 23).
3 Pages(750 words)Speech or Presentation
Why NO to Genetically Modified Foods
(Name) (Tutor’s Name) (Date) Why no to Genetically Modified Foods Introduction Genetically Modified Foods (GM foods) or biotech foods are developed from genetically modified organisms. Organisms are genetically modified by introducing specific changes into their DNA by the application of improved genetic engineering techniques.
3 Pages(750 words)Speech or Presentation
Lab #3
The range of the number of hours watching television by respondents is 24 hours per day with minimum being 0 hours per day and maximum being 24 hours per day (may be an error in data!). Watching television less than 3 hours per
2 Pages(500 words)Speech or Presentation
Mat lab
14). Thus, we input the following codes on MATLAB’s command window: The first line defines the values of x. That is, from 0 to 6*0.688 with an increment of 0.01. We are therefore defining a one dimensional array. The increment can be any number but a smaller
6 Pages(1500 words)Speech or Presentation
Complete the following problems in a Word document and Submit through this drop box
What is the probability that the selected subject is someone 60 and over who responded? The linear correlation coefficient, r is a numerical
2 Pages(500 words)Speech or Presentation
Pre-Calculus
b. cos-1(1), from the quadrant the value of cosine ranges from 0 to 4 π. For the inverse of cosine of negative one the value = π+2 πk where
1 Pages(250 words)Speech or Presentation
Molecular
Suppose that a particular length fragment, called A, has a variant A1 that is only found in 1% of the population. Similarly, suppose that the fragment B has a variant B1 found in 4% of the population, and C has a variant C1 found in 2.5% of the
5 Pages(1250 words)Speech or Presentation
Finance questions
Volleyball plyometric program should be aimed at conditioning the neuromuscular systems, improving the impulse force. At the same time, the effectiveness would be limited if basic strength is lacking. Furthermore, as far as agility is concerned, emphasis should
1 Pages(250 words)Speech or Presentation
Using differentiation find the difference between maximum and minimum heights for both the roller coasters
Using mathematical formulas, people express the cause and effect relationship of a phenomenon. Mathematical modeling is nothing but finding relationship among different variables that describe a phenomenon or object (Simon Fraser University
3 Pages(750 words)Speech or Presentation
(I suggest R only for those students who have some programming experience). SAS, SPSS, and Matlab are all available in all UA OSCR labs as well. You must turn in a log of your work in the program of your choice. Do not use Excel – take this opportunity to learn the
2 Pages(500 words)Speech or Presentation
Let us find you another Speech or Presentation on topic CHEM 121 pre-lab for FREE!
+16312120006