In this lab‚ we were able to determine measuring the pH of liquids work. We were able to compare the liquids based on their pH level and determine which liquid was acidic or basic. Our results showed that if something came out to be seven or less‚ according to the pH scale‚ it means that an acid is a substance that donates hydrogen ions. Because of this‚ when an acid is dissolved in water‚ the balance between hydrogen ions and hydroxide ions is shifted. Now there are more hydrogen ions than hydroxide
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Megan Adkins-Blanch 11/10/14 TA: David Stephens CHE 3652-003 Aldol Condensation: 4-methoxychalcone Abstract: To synthesize 4-methyoxychalcone. Reaction Mechanism: Table: Compound Molecular Weight (g/mol) Density (g/mL) Boiling Point (°C) Melting Point (°C) Amount used (g‚ mL‚ etc.) Acetophenone 120.16 1.03 201.7 19.7 1 ml 95% ethanol 46.07 0.8 79 -114 50% NaOH 40.2 1.53 140 12 Anisaldehyde 136.16 1.12 248 -1 1 ml Structures: Acetophenone: 95% ethanol: 50% NaOH: Anisaldehyde: MSDS:
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1. What are historical explanations? Historical explanations are another term for ultimate explanations which are concerned with the entire existence of a group of organisms as opposed to just the explanations of a specific individual. 2. How are Freudian concepts historical explanations? What mistake do such explanations make to manufacture an immediate cause of behavior? Freudian concepts are historical explanations because of the use of childhood experiences as explanations for adulthood behavior
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Explanation What is the key idea in popular culture? The key idea in pop culture is that it is always changing. This is because pop culture identifies with the entertainment produced through and by commercial media‚ and there are different criteria for entertainment as time goes by. Popular culture includes the practices of everyday life‚ the activities and communicative practices of everyday life that people take part in or observe to entertain themselves are a part of popular culture. What
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Are We Too Dependent on Computers? Is our society too dependent on computers? I‚ like many Americans today‚ have become reliant on the usage of computers. It influences all aspects of my life by bringing about a new level of convenience. Computers are a part of our everyday lives whether we like it or not. They make simple tasks much easier and allow us to strive to our full potential.However over the years‚ computers have become much more than a tool but necessary part of our lives. They have replaced
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horse. I’ve gathered some information about this constellation and here’s what I got. The Pegasus constellation can be found in the northern sky. Also‚ It is said that it belonged to the 48 constellations discovered by an astronomer from the 2nd century‚ Ptolemy. As of today‚ this constellation is still listed among the 88 constellations of the present.
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Explanations of conformity Why do we conform? Deutsch and Gerrard 1955 decided that there were 2 possible reasons why you would conform. They suggested that it was either due to Normative social influence or due to informational social influence. Normative social influence Need: - Humans have basic need to we want to feel accepted‚ approved and liked and as a member of a group How it leads to conformity: - in order to gain acceptance by others‚ we often conform to the
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Question: Effects of pH on amylase activity Introduction: Amylase is an enzyme that is in human’s saliva as well as the pancreas. Enzymes are biological catalysts that speed up a chemical reaction. They break down complex molecules into simple ones. In this case‚ amylase converts starches (complex molecule) into simple sugars. That is why foods like potatoes for example‚ may taste sweet to us‚ because they contain starch. The optimum pH for pancreatic amylase is the pH of 7. In the experiment
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beginning of each poem‚ each of them reflect on each other’s premise‚ then going on to their own qualities. Both of the poems seem like they could come from different people‚ staying very central and positive on their own thoughts. In this essay‚ an explanation will be done on the main points of Milton’s joyous poem‚ “L’Allegro”. Firstly‚ the introduction of “L’Allegro” talks about the underworld‚ which suggests that depression will send you to the underworld prematurely. To counteract this fate‚
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Lab on pH Levels Purpose: Throughout this experiment we are trying to learn how to take proper pH measurements using a pH meter. We also want to see the pH of different common liquids and record the change in pH when we add acids and alkaline liquids. The last reason we are conducting this experiment is to explain and show how fresh milk spoils by the change in pH. Materials: In this experiment we used graduated cylinders and glass beakers and added variety of ingredients including 50 mL of; soda
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