Materials : Pineapple juice‚ 0.1% ascorbic acid solution‚ 2‚6-Dichlorophenol – Indophenol (DCPIP) solution‚ distill water‚ filter paper. Apparatus : Small test tube and rack‚ 1cm3 and 5cm3 syringes with needles‚ 250ml beaker‚ 25ml measuring cylinder‚ stirrer‚ electronic scale. Methods Part A: Standardization of DCPIP (Titrant) solution 1. 1.00g of ascorbic acid tablet was measured by electronic scale and dissolved in 100.00ml of distilled water. 2. A 1.00cm3 syringe was used to transfer
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When consuming products and services‚ customers pay attention to several factors to make sure that they have made a sensible decision. Perhaps‚ the very first thing to be taken into account‚ under some circumstances‚ is price. However‚ it should not always be the sole consideration for purchasing decisions. From my point of view‚ apart from price‚ there are other determinants that can have a strong impact on a buyer’s decision‚ namely quality‚ buyer psychology and commitments that a firm offers its
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Accuracy is a critical component of evaluating intelligence. Since its inception in the 1950’s‚ there have been about fifteen hundred National intelligence estimates. The estimative nature of NIE’s makes it almost impossible to measure it accuracy and the Intelligence Council has never established a system for evaluating the estimative accuracy. NIE’s are essentially judged in two ways‚ if the NIE is proven correct then the NIE is good; if incorrect then the NIE is bad. Checking the validity of NIE’s
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The equipment needed when making standard solutions includes; a volumetric flask‚ a glass beaker‚ two plastic weighing boats‚ scales‚ a spatula‚ and the sodium hydroxide. When using glassware in experiments‚ it must be flushed out to make sure that cross contamination does not happen and that the only thing that would then be coating the beaker is the distilled water. When all of the glassware has been cleaned‚ some sodium hydroxide should be placed in a plastic weighing boat next to the scales
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Week 2 Activity – Meal Purchase TCO #2– Given a simple business problem‚ design a solution algorithm that uses arithmetic expressions and built-in functions. Assignment: Your goal is to solve the following simple programming exercise. You have been contracted by a local restaurant to design an algorithm determining the total meal charges. The algorithm should ask the user for the total food purchase and the tip percent. Then‚ the algorithm will calculate the amount of a tip‚ a 7% sales
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The relative contributions of nature and nurture are an apparent part of human development which makes us ask the question‚ are heredity and environment opposing forces? The question of nature vs. nurture can be examined and can be attempted to be comprehended in many ways. Our stand on which theory is the correct one is obviously a matter of opinion and makes us wonder if only one of them is truly correct. Nurture seems to be the explanation that holds the most tangible evidence to support it
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NS 10.5 (pg 1 of 2) Heating and Cooling Curves What happens when we heat a sample of ice that is initially at -15°C? The addition of heat causes the temperature of the ice to increase. As long as the temperature is below 0°C‚ the sample remains frozen. When the temperature reaches 0°C (the melting point of water)‚ the ice begins to melt. Because melting is an endothermic process‚ the heat we add at 0°C is used to convert ice to water and the temperature remains constant until all the ice
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Tomasulo Loop Example Loop: • • • • LD MULTD SD SUBI BNEZ F0 F4 F4 R1 R1 0 F0 0 R1 Loop R1 F2 R1 #8 This time assume Multiply takes 4 clocks Assume 1st load takes 8 clocks‚ 2nd load takes 1 clock Clocks for SUBI‚ BNEZ Show 2 iterations Load=8‚1 Add=3 Mult=4 SUBI/BNEZ=1 Store=3 Instruction status: ITER Instruction 1 1 1 2 2 2 LD MULTD SD LD MULTD SD j 0 F0 0 0 F0 0 F0 F4 F4 F0 F4 F4 k Exec Write Issue
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Apparatus: Safety spectacles Weighing bottle Balance capable of weighing to within 0.01g Spatula Stirring rod with rubber end Dropping pipette Wash bottle of distilled water Funnel Volumetric flask‚ 250 cm3 Beaker‚ 250 cm3 Retort stand Burette clamp Burette‚ 50cm3 Pipette‚ 25cm3 Pipette filler Beaker‚ 100cm3 White tile Conical flask‚ 250cm3 Reagents used: Distilled Water Hydrated Sodium Borate 1.0 M Hydrochloric acid Screened methyl orange Sodium Borate solution
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According to economic theory‚ what determines the demand for a product? According to economic theory‚ the demand for a product is determined by four factors; popularity or fashion‚ income‚ the age distribution of a country and the price of related goods. The most important of these being the income. There is a positive relationship between the income of the consumers and the demand of a normal good. The disposable income of any consumer determines how much money they have to spend on goods. With
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