take the pennies out of the cups for a few minutes to fully view them. Make sure you write notes and answer several questions about your experiment. Is one type of soda visibly reducing the amount of tarnish present on the penny? Do the lighter sodas take the tarnish off the pennies faster than the darker sodas or do the darker sodas take the tarnish off the pennies faster than the lighter
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Experiment ANALYSIS OF SODA ASH The CCLI Initiative Computers in Chemistry Laboratory Instruction LEARNING OBJECTIVES The objectives of this experiment are to . . . • understand the titration curve for a diprotic base. • use the titration curve to calculate the percent of Na2 CO3 in an unknown sample of soda ash. BACKGROUND Sodium carbonate is an important industrial chemical. It is used in the manufacture of soap‚ glass‚ paper and as a source of alkalinity‚ that is‚ as a
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Baking Soda (NaHCO3) Lab (Stoichiometry) - Physical Science Name: __________________________________________________ Purposes: 1. Calculate theoretical mass of NaCl based on a known mass of NaHCO3. 2. Experimentally determine the actual mass of NaCl produced. 3. Calculate the percent yield for your experiment. Reaction Equation: NaHCO3(s) + HCl(aq) ( NaCl(s) + CO2(g) + H2O(l) Materials: safety glasses baking soda (NaHCO3) 1 M HCl and
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Darry and Soda had different points of view on how to interact with their brother Ponyboy. On page 2‚ the books states‚ “Soda’s never hollering at me all the time the way Darry is‚ or treating me as if I am six instead of fourteen.” From this quote‚ the reader is told that Darry treats Ponyboy differently than Soda. It can be inferred that Darry is more strict with Ponyboy while Soda may not be as strict. On the other hand‚ “Soda’s always happy-go-lucky
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The Stamp Act was the document that taxed many of the colonists goods like tea‚ food‚ newspaper‚ etc. The colonists were strongly affected by not being able to buy goods and other items. England had just came out of the Seven Years war and they were in war dept. In order to make back the money that the English lost‚ they passed the Stamp Act which taxed all the colonist’s goods. Across from the Atlantic Ocean the colonists were forced to boycott. Over sea the colonists were furious that the English
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Experiment # 4: Analysis of Soda Ash Experiment # 5: Volumetric Analysis of a Carbonate – Bicarbonate Mixture Submitted by: Eugenio December 2012 Department of Chemical Engineering University of Santo Tomas España‚ Manila Abstract Soda ash is the common name for sodium carbonate (NaCO3)‚ a chemical salt derived from carbonic acid. It is frequently used in manufacturing‚ industry‚ and in domestic chores. Glass production is one of the primary industrial uses for sodium carbonate. It is also
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7 February 20th 2012 Soda Is Bad For You According to statistics‚ in the past couple year’s soft drinks have become much more consumed by Americans. Although most people enjoy the taste of these sugary drinks most research shows that they are bad for you. Drinking soda can cause the enamel on your teeth to dissolve‚ take calcium out of your bones and cause them to weaken‚ cause a person to become overweight possibly obese‚ and cause acne breakouts. Whether you call it soda‚ pop‚ a tonic‚ coke‚ or
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22nd‚ 1765. News spread like wildfire after the colonists heard that the British Parliament had issued a new tax on the American people. Initially passed on February 17th‚ 1765‚ the Stamp Tax was not given Royal Assent‚ or made an official law by the passing of the British Parliament‚ until March 22nd‚ 1765. The Stamp Act was put into place by Britain shortly after The Seven Years’ War: a battle between the British and the French over land. After the bitter war left Britain in crippling debt‚ Parliament
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A Colonial Family’s Reaction to the Stamp Act By: Melissa Bourne Address: 8517 Barrett Hall Lane‚ Wake Forest‚ North Carolina‚ 27587 Phone number: (919)-801-5712 School: Rolesville Middle School 8th Grade The Stamp Act played a big part in turning colonists against the British. The Stamp Act placed a stamp duty on common documents. It taxed things like newspapers‚ legal documents‚ commercial documents‚ and even playing cards. It forced them to pay a tax on every piece of paper they used
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which shall be engrossed‚ written‚ or printed‚ any declaration‚ plea‚ replication‚ rejoinder‚ demurrer or other pleading‚ or any copy thereof; in any court of law within the British colonies and plantations in America‚ a stamp duty of three pence.” (British‚ parliament). The Stamp Act was created and enforced upon the colonies by the British Parliament on March 22‚ 1765. After fighting in the North America’s alongside the Colonists and in various other locations globally‚ the British racked up a healthy
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