Part B: The graduated pipet’s average density at 22.3 °C was determined to be 0.9785g/mL with a percentage error of 1.89% shows the graduated pipet to be more accurate and precise. Part C: Density of an unknown NaCl solution was measured and a calibration curve used to determine the percentage of NaCl by mass in the solution. y=0.007x + 0.998 which concluded that the concentration of the sodium chloride solution was 3.14%. INTRODUCTION Anything that you can see, touch, taste or smell, occupies space and has mass, it is called matter. Matter can be a gas, a liquid,
This explanation can be demonstrated in table 3 also because the results of the reactions demonstrates that chloride reacted more by the color of the product compared to the color of chloride in the mineral oil. Also it also demonstrates that iodine is the weakest oxidizing agent because the results show that iodide didn’t change much from the color that it showed in the mineral oil. In example 6 we have shown the activity series for the halogens used in this
Basically, these people view the Constitution as a finished project. This term was coined by Paul Brest in 1981 and he defined originalism as “the familiar approach to constitutional adjudication that accords binding authority to the text of the Constitution or the intentions of its adopters.” The living constitution view means that the Constitution is a “living” document. Such as a living person changes over time, so does the Constitution. These people view the Constitution as an initial framework for governance that sets politics in motion and must be filled out over time through constitutional construction. So the goal of this is to get the government started and keep it going and stable so it can solve future problems of governance.
Afsana Islam CHEM 106 – LAB Lab Report #4 03/02/2015 Focus Questions: Is mass conserved in the chemical reaction that you studied in lab? The mass of the zinc and iodine were definitely conserved. The mass did not change much after the chemical reaction occurred. Raw Data: Experiment # Mass of “R” boiling tube Mass of Zinc used in Mass of Iodine used in Mass of excess zinc and “R” boiling tube after r/h/c Mass of excess zinc and “R” boiling tube after r/h/c a 2nd time Mass of “P” boiling tube and boiling chip Mass of “P” boiling tube, boiling chip, and zinc iodide after h/c Mass of “P” boiling tube, boiling chip, and zinc iodide after h/c a 2nd time 1 40.63g 2.00g 3.00g 40.83g 40.83g 41.46g 45.29g 45.29g 2 40.63g 1.00g 2.00g 41.09g 41.09g 42.25g 44.60g 44.60g
In the experiment, toluene was alkylated with 2-chloropropane to synthesize isomers of isopropyltoluene in 47% yield, weighing 2.66g. The final product had a purity of 91.8% while the appearance was a colourless clear liquid with a strong odour. The results suggest that although the product yield was low, the experimental design led to the production of isopropyltoluene in high purity. REFERENCES 1. Smith R, McKee J, Zanger M. The electrophilic bromination of toluene: Determination of the ortho, meta, and para ratios by quantitative FTIR spectrometry.
Using a flexible budget is more accurate in this instance as it captures the change in anticipated production from 10,000 to 10,800 bikes. Variance Analysis Implications and possible Causes Frame Assembly Department There is a favorable cost variance in the frame assembly department of approximately $82,663 when comparing actual costs to flexible budgeted costs. Steel tubing has a total unfavorable variance of $8,100. The original budget for 2004, estimated the cost of steel tubing at $30.00 / lb. Actual costs were $31.50 / lb., which may indicate unanticipated price increases (for example an increase in commodity prices since steel is a commodity), or higher costs for additional orders of steel required to meet the increased production demand.
This cleaner switch has been crucial for the recent record low emission levels. The amount of power produced by coal has dropped to 32 percent thanks to the efficiency of gas, which has now been made more easily accessible by means of hydraulic fracturing. Hydraulic fracturing (a new method of drilling developed using hydraulic technology) has made previously impossible to reach deposits of shale gas available for energy use (1). The United States have set record low prices for gas due to fracking methods. With the prices adjusted for inflation, these are record low prices for the first time in over 35 years (1).
over the 3-year period from 2003 to 2005. Total assets dropped $1 million, or 3%, but remain near $35 million. The most notable asset change is the $500,000, or 8%, decrease in accounts receivable. However, cash did increase $200,000 which gives the company the opportunity for business investment in the coming fiscal year (“University of Phoenix,” 2006). A positive trend shows that total liabilities have dropped $1.7 million, which is accounted for by a $2 million, or 42%, decrease in long-term debt.
Being that these types of assets are From significant parts of savings, this is a logical argument. 1982 to 1989, the Dow Jones Average went from 884 to 2,509 which drastically increased capital assets’ values. There was an impressive drop in the unemployment rate during Reagan’s administration as well. 17 million new jobs were created and the unemployment rate fell from 9.7% to 5.5% by the time Reagan’s presidential term ended (Niskanen & Moore 1996). The hours worked by working aged adults grew during
In addition, copper and aluminum fell by 50% whereas gold incurred a small loss in the second quarter. These lower prices lead export prices to fall 4.1%, significantly contributing to the 3.5% fall in nominal GDP. The figure shown below summarizes the export changes in the abovementioned sectors:17 16 Ibid. "Canadian Economic Observer: Section 3." 17 Ibid.