Identification of a Copper Compound by Percent Mass Unknown Compound: #9 Abstract: The objective of this experiment was to identify the unknown pure copper salt compound of #9. To do this‚ the mass of copper in the unknown was calculated and then divided by the mass of the whole compound to get the percent copper. The molecular weight was also calculated by dividing mass of copper compound used by moles of compound in unknown sample. The percent copper averaged out to 31.6% while the molecular
Premium Chemistry Chemical element Ion
POE WITH GUIDING ANSWERS US 116364 Assessment Tips: Assessor must demonstrate his/her interaction with the POE through the use of ticks on responses to activities provided by the learner. Feedback comments on areas where the assessor believes need commenting must be done in the POE as well as the assessment feedback documents. Areas of superior performance must be noted in the POE as well as areas of lack or insufficiency. Using this document: Guiding answers are in italics
Premium Municipality Budget Annual report
In Reaction 1‚ the mass of the pre-cut copper wire was measured with watch glass on the analytical balance‚ the mass was recorded using as many significant figures as possible on Table 2. The copper wire was bended into a circle and laid flat on the bottom of the 250 mL beaker. Inside the fume hood‚ 4mL 16M of HNO3 was added into the 250mL beaker that contained the copper wire. The copper wire was completely dissolved by swirling the beaker. The observation was recorded in Table 3. For Reaction 2
Premium
Objective: Viability of Napster as a revenue generating company. Case in brief: Napster is a brainchild of Shawn fanning‚ launched on June 1 ‚1999 as a peer-to-peer music downloading program for college students. Napster became a one of the most popular sites on the internet‚ claiming some 15 million users in little more than a year. From the beginning‚ Napster facing so many problems from the RIAA and music industry players. Napster violated the copyrights by allowing users to swap the music recordings
Premium Record label Music industry Universal Music Group
of copper wire was 1.250g but the recovered copper was only 0.120 subtracting the mass of the recovered copper with beaker from the tare beaker mass. So the percentage yield resulted only to 9.6% it is very little‚ and it may be due to many possible sources from doing the steps. Adding too much or too little of a compound to the copper solution‚or the loss of copper during transport or by being left on the stirring rod. Another situation which was a source of error is when the copper solution and
Premium Copper Sulfuric acid Nitric acid
value in sequel rights‚ how they will be able to make money off of these investments in the rights‚ or understand why studios would be willing to sell them. Then‚ we will address the timing of the offers and why it is so important‚ especially in this case. Next‚ we will look at the “fair” value for these films using two different approaches. The first approach is the net present value of the entire set of 99 films for 1990. We will look at three different sets of assumptions with the net present value
Premium Film Net present value
A COMPARISON OF ALUMINUM VS. COPPER AS USED IN ELECTRICAL EQUIPMENT Larry Pryor‚ P.E. – Sr. Specification Engineer‚ GE Consumer & Industrial Rick Schlobohm‚ P.E. – Sr. Specification Engineer‚ GE Consumer & Industrial Bill Brownell‚ P.E – Specification Engineer‚ GE Consumer & Industrial ABSTRACT The debate over the pros and cons of aluminum vs. copper conductors has been discussed for many years. Many of the concerns are based on old information and also misinformation. These concerns center on the
Premium Aluminium Copper
The Ok Tedi Copper Mine Ethical Issue * Opening the mine without a waste storage. If they would have waited to open the mine for the waste storage to be completely finished they never would have started disposing trailing in the river. * Environmental damage along the Ok Tedi. The environment that is affected is the river‚ the fish‚ the forest area along the river‚ the gardens‚ and hunting resources. The damage is already done to the environment. How long will it take to get
Premium Mining
(negligently) runs over another while driving carelessly has committed a tort of battery based on negligence Duty of Care The reasonable person standard The law does not require perfection‚ only what is reasonable under the circumstances In the case of a professional such as a doctor‚ engineer or accountant‚ that standard is a reasonable doctor‚ engineer or accountant. SQUISH LA FISH v. THOMCO Issue Did the defendant fail to take reasonable care that the information it provided was correct
Premium Tort law Tort Negligence
one place. Copper State Nut & Bolt can provide you with all of the supplies you need to complete your project. From fasteners and construction products to power tools and accessories‚ your construction needs can be met in one stop shopping. About Copper State Nut & Bolt Copper State Nut & Bolt is a privately held company which has been a leader in providing construction products to contractors‚ retailers and wholesalers in the southwestern U.S. since 1972. With 21 locations‚ Copper State offers
Premium Management Employment Customer service