lower than 7. Some more common laboratory acids are Hydrochloric‚ Sulphuric and Nitric Acids. Sulphuric acids and water are used in car batteries as the electrolyte. Bases or alkali are a chemical that will react with acids and usually have a slimy or soapy feeling on contact with skin. Bases readily accept hydrogen ions and has a pH level that is higher the 7. Bases have a bitter taste and neutralise d by acids‚ producing water and a salt. Some common laboratory bases are Sodium Hydroxide‚ Potassium
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Independent India India acquired independence on 15 August 1947 though sections of the country were carved out and stitched together to create another new country‚ Pakistan. The “institutional” road to independence was perhaps laid down by the Government of India Act of 1935‚ where the gradual emergence of India as a self-governing entity had first been partly envisioned. Following India’s independence in 1947‚ the Constituent Assembly deliberated over the precise constitutional future of India
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LAB 4: KIRCHHOFF’S RULES DIY Lab This section is adapted from reference 1. Objective In this experiment‚ you will experimentally verify Kirchhoff’s rules by measurement and by mathematical analysis. Apparatus (Lab Kit* or NIC Lab) 5 resistors one 6V battery or power supply (each under 1.5 kΩ each‚ not all equal) digital multimeter 12 connecting wires *If you do not have the Lab Kit‚ you can use equivalent items. Contact your instructor regarding equivalent items to ensure that the objective
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Design Research question: This should be a clear focused question that says exactly what you are investigating. It shouldn’t be too long and it must include the dependent and independent variables. Eg. What is the effect of pH on the activity rate of salivary amylase? Dependent variable: activity rate Independent variable: pH Hypothesis: This is a paragraph or two where you explain your research question. You are going to say something like: "Salivary Amylase is a an enzyme that digests
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ABSTRACT: Two separate variables were hypothesized and tested within the confines of the experiment on their effects on the productivity of lactase enzyme. The measurement of light absorbance levels of different solutions based on both the concentration of o-nitrophenol (ONP) as well as the pH of the solution tested. To begin with‚ differing concentrations of ONP were tested to find the absorbance levels of ONP. Three different pH values‚ 5‚ 6‚ and 7‚ in solution‚ were tested over a period of 8
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pricing that kept minor division profitability low. * Independent chains- Chains were responsible for their own strategy. This either benefited individual brands or created a lack of a single corporate vision. * Zara erosion- Revenue forecasts indicate Zara market share was eroding 3 percent per year despite being the principal driver of growth. * Strong Vertical Integration- Inditex benefited from strong control of customer orders up through the purchasing‚ designing and building of materials
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Lab #3 January 30‚ 2012 1. Title: Laboratory Techniques and Measurements 2. Purpose: The purpose of this lab is to learn laboratory techniques and to how to measure precisely. During this lab I will learn how to measure length‚ temperatures‚ volume‚ density‚ and mass using laboratory equipment. I will be using laboratory equipment to prepare dilutions and calculate them while using an algebraic formula. 3. Procedure: In order to perform this lab I needed the following materials:
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The lab performed was laboratory techniques and measurements. The purpose of this lab was to familiarize ourselves with different techniques used in the lab‚ taking proper measurements‚ and how to use the International System of Units (SI). Throughout lab we learned about mas‚ volume‚ length and temperature‚ and to be able determine density and concentration. To be able to documents properly and make effective observations we must be able to understand the International Measurement System. Length
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the effect of a particular factor on an enzyme-catalysed reaction are commonly used as assessed practicals in Biology. The reason for this is there are a number of factors that can be investigated‚ and therefore‚ a number of factors that can also be controlled. From our lecture‚ we are aware that the following can affect the rate of reaction: 1) Temperature: a. Independent variable: A range of temperatures should be investigated‚ with particular attention to the area around 35-45oC
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Independent Research Psychoanalytical theory; it is a literary criticism‚ is a method that influenced by the tradition of psychoanalysis also to understand the human behaviour. However in a literary approach the literary criticism works as a way of expressing the text as if it were a kind of dream‚ it also uses symbolism of the dream work and arrives at the underlying latent thoughts. An example of psychoanalytical theory used in text‚ a famous book called the twilight saga by Stephanie Mayer
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