1 Weigh the beaker. 2 Add 50 milliliters of the solution you want to test to the beaker and record its mass. The mass of the solution is equal to the total mass minus the mass of the beaker. 3 Divide the mass of the solution by its volume -- in this case‚ 50 milliliters -- to find its density. 4 Empty‚ rinse and dry the beaker. Add 4.3 grams of sugar to the empty beaker‚ then add water until the contents reach 50 milliliters in volume. Stir until the sugar dissolves‚ then measure the
Premium Mass Water Chemistry
1. The final yield of the cells can be determined by use of an automated cell counter or by use of a hemocytometer (Neubauer chamber). In our laboratory‚ we determine the number of purified cells in a Neubauer-improved‚ bright line chamber with V-slash with a depth of 0.1 mm and a counting area of 0.0025 mm2 from Marienfeld (Lauda Königshofen‚ Germany‚ PN # 0650030). 2. For determination of the final cell yield‚ mix a 10 µl aliquot of the purified cells (Figure 9D) with 10 µl of trypan blue solution
Premium Natural number Left-wing politics Sample size
Claudia Ruiz October 3‚ 2011 MGMT 80- International Business Written Assignment: The World Beer Industry Beer Around the World Approximately‚ 100 billion liters of beer are consumed around the world every year (Olfir‚ 2007). The worldwide growth rate of beer consumption has been recorded for the past 19 years (Kirin Holdings‚ 2005). This‚ however‚ is not to say that the beer consumption around the world is alike. The alcoholic beverage consumption levels around the world and the rates
Premium Beer Drinking culture Alcoholic beverage
Name of the Student:………………… Date:………….. What is the volume of 1 mole of hydrogen gas? One mole of any gas occupies the same volume when measured under the same conditions of temperature and pressure. In this experiment you will calculate the volume of 1 mole of hydrogen at room temperature and pressure. Intended lesson outcomes By the end of this practical you should be able to: • further develop skills in manipulating apparatus and accurate measurement; • use the mole concept; • calculate
Premium Gas Chemistry Pressure
Approximately 40 mL of the ionized water was added to the 100 mL beaker‚ then in a 10-mL graduated cylinder‚ 5-mL of HCl was measured then added to the 100-mL beaker of water. The 100 mL beaker was then placed on the assembled ring stand. Approximately 40 mL of the 0.1M NaOH was added to the 250 mL beaker. The 40-mL of NaOH was then added to the buret which was then attached to the ring stand. The LabQuest and the Vernier pH sensor was then hooked up and turned on to measure and graph the pH of the
Premium
With my test result‚ it clearly shows that the concentration of sulfuric acid is 0.05 mol/dm3 using the concentration equation‚ c= n/v. 25 cm3 of the volume with sodium hydroxide is equal to 0.025 dm3 by dividing a thousand with cm 3 and multiply it with 0.1 mol/ dm3 which is the concentration of sodium hydroxide. With the ratio between sulfuric acid and sodium hydroxide is 1 to 2 so‚ 0.0025 should be divided by 2 and 0.00125 moles of sulfuric acid is come out. Finally‚ using c = m/v‚ 0.00125 mole/0
Premium Chemistry Sulfur Chlorine
forever.. but power may be not” D E B EE R S C A S E S T UD Y A Cash Cow Industry An estimated US$13 billion worth of rough diamonds are extracted every year Extracted diamonds can be used for industrial purposes or in the luxury sector (gemstones) Diamond jewellery is worth more than US$72 billion per year (very high profitability) The biggest slice of the cake A giant’s first steps Founded in 1888 in South Africa by Cecil Rhodes‚ De Beers quickly obtained a dominant position in the
Premium De Beers Diamond
Vol. 10‚ No. 3‚ May 2010‚ pp. 142–145 issn 1532-0545 10 1003 0142 informs ® doi 10.1287/ited.1100.0048cs © 2010 INFORMS I N F O R M S Transactions on Education Case Forecasting Beer Demand at Anadolu Efes Murat Köksalan Department of Industrial Engineering‚ Middle East Technical University‚ Ankara 06531‚ Turkey koksalan@ie.metu.edu.tr Selin Özpeynirci ˙ ˙ Department of Industrial Systems Engineering‚ Izmir University of Economics‚ Izmir 35330‚ Turkey‚ selin.ozpeynirci@ieu
Premium Beer Alcoholic beverage
Calorimetry and Specific Heat Tessa Williams Chemistry 111 11/13/13 Abstract: In this experiment‚ the specific heat and the density of an unknown metal was determined in order to identify the unknown metal. The average specific heat of the unknown metal was 0.197˚C and was determined using a calorimeter. The density of the unknown metal was 6.57 g/mL and was determined using a cylinder and displacement. Using the specific heat value of the unknown metal and its density‚ it
Premium Thermodynamics Heat Energy
Experiment 3: Separating and Determining the Mass of Calcium Ion in a Calcium-Enriched Tablet In this lab‚ we dissolved a calcium-enriched tablet and participate the calcium ion as calcium carbonate. Our purpose is to determine the masses of calcium carbonate and calcium ion‚ to determine the mass percent of calcium ion in the tablet and to compare the masses and the percent with the listed tablet ingredients. This time we used a 150mL beaker‚ analytical balance‚ forceps‚ a 50mL graduated cylinder
Premium Chemistry Water Solubility