Datalogging Experiment (4) Acid-base Titration using Method of Double Indicators Student Handout Purposes To determine the composition of the following mixture by double indicator method: 1. NaOH(aq) and Na2CO3(aq) 2. NaHCO3(aq) and Na2CO3(aq) Introduction Consider a mixture of NaOH(aq) and Na2CO3(aq). Reaction between HCl(aq) and Na2CO3(aq) takes place in two stages: HCl(aq) + Na2CO3(aq) ⎯→ NaHCO3(aq) + H2O(l) …………………. (1) HCl(aq) + NaHCO3(aq) ⎯→ NaCl(aq) + CO2(g) + H2O(l) …………. (2) While
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child who’ll want to follow me.” This excerpt from the poem‚ “Walk a Little Slower Daddy”‚ emphasizes the impact that fathers have on their children. Although many mothers raise their children alone‚ the role fathers play remains irreplaceable. Working hard throughout the day‚ fathers generally act as the sole or primary source of income for their families. As demonstrated in the poem‚ “Walk a Little Slower Daddy‚” children‚ especially sons‚ imitate their fathers‚ striving to grow into men like them
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Chemistry Experiment Double Indicator Titration 1 Aim The purpose of this experiment is to find the composition of a sample of sodium carbonate mixture by titration. Introduction The reaction between sodium carbonate and hydrochloric acid occurs in 2 stages‚ with the formation of hydrogen carbonate ion as the intermediate product. Na2CO3(aq) + HCl [pic] NaHCO3(aq) + NaCl(aq) NaHCO3(aq) + HCl(aq) [pic] NaCl(aq) + H2O(l) + CO2(g) [pic] Requirements Hydrochloric
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Journal 3 – Double Indemnity (7-14) “That’s all it takes‚ one drop of fear‚ to curdle love into hate” (Cain 54) – As soon as he set his eyes upon Mrs. Nirdlinger‚ Walter was in love. Both Walter and Phyllis may have an evident lust for money‚ but Walter’s infatuation with Phyllis’s being definitely encouraged his violent actions. It is interesting that Walter is already coming to realize this. Walter realizes what he has been lured in to and is trying to put some blame on Mrs. Nirdlinger’s sex appeal
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Penny Argumentative Performance Task Garrett Forrest Do you think the penny should be preserved? The one-cent piece‚ commonly referred to as the penny has been in a giant argument in the United States about whether if we should keep the penny in circulation‚ or abolish the penny totally from the U.S currency. The penny should be abolished totally from the U.S Currency for several different reasons. To begin with‚ have you ever thought about the cost of a penny? If you ask a random person‚ they
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preservation of the past. The penny‚ despite its seemingly futile existence‚ is a major part of American history. It should remain in circulation not only because it is deeply rooted in society‚ but also because it is a constant reminder of our history. Due to the prominence of pennies in America‚ it would be nearly impossible to eliminate them from society. To begin with‚ the federal government would have to sway a society that is primarily in favor of keeping the penny in circulation (Harris Poll)
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the past. If you take a look at a penny‚ most people will see our sixteenth president‚ and some will just see a cooper mixed zinc coin that is worth one cent. However‚ what most people don’t realize is that this penny shows the history of how our nation came to be and how we strive in still remembering our traditions. Although some people find the penny a useless and an immaterial piece of the coin‚ people should treat a penny like a regular dime or nickel. The penny has important historical information
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the density and composition of a penny it must be first weighed on a scale. Find the average mass of multiple pennies from the same year. After weighing it find the volume by placing the pennies into a 50 ml beaker with 15 ml of water. Note the change in volume to obtain the volume of the pennies‚ obtain the average volume‚ and then calculate the density by dividing the mass of the penny by the volume. 2.) To keep measurements accurate and precise test multiple pennies from the same year and make sure
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We all know the penny‚ it is similar to the avocado due to the fact they both should be eliminated‚ but are still here today. The avocado should have been eliminated because its survival depended on the giant armadillo‚ and the penny should be eliminated because of inflation. Pennies should be abolished because it costs more to make than it is worth‚ we already abolished a coin without bad side effects‚ and most arguments against it have solutions. First‚ the penny costs more to produce than it is
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Pennies gets dirty at times whenever people take them out of their pockets to pay for something. Pennies are exposed to air and lose their shine really quickly. They collect dust‚ dirt and gunk. Most people‚ without paying attention‚ drops their pennies on the floor and become rusty over time. The reason for this is the air and other things that come into contact with this penny. A cleaning solution can be described in chemical formula of Acetic acid‚ a colorless organic compound‚ which has a pH
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