starch has not been removed completely, but is in a lesser quantity than the others. Heat an ice cube in a beaker. white powder Chloride Explain Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. You have read that a new brand of hair tonic is Grecian Formula ). Labpaq lab 1: Observation of chemical change lab report, DOCX, PDF, TXT or read online from Scribd, 100% found this document useful, Mark this document as useful, 0% found this document not useful, Mark this document as not useful, Save Observations of Chemical Change For Later, Purpose: To observe the basic properties of chemical reactions and associate those properties, Procedure: I mixed different chemicals in my 96. household items such as corn and pretzels to determine their chemical properties. True The heating and burning of Cu(NO ) was exactly the same, other than the addition of the glowing 5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. zinc metal. Copper(II) Looking at the result from our prior experiments where I now know that when BTB turns yellow it indicates higher acidity levels means that that particular flavor of vitamin water is higher in acidity than the ones that were neutral (green), and the flavors that turned blue were the opposite and indicate that the they are more base. 0000002525 00000 n NaOCI and KI The color was more pronounced under the white piece of paper. 0000013107 00000 n Suppose a household product label says it contains sodium hydrogen carbonate (sodium. Experiment 1 Exercise 1 B Data Table 1 Data Table 1: Chemical Change Observations Chemical #1 Appearance Chemical #2 Appearance Observations Chemical Change (Yes/No) Well Chemical #1 (4 drops) A1 NaHCO3 Sodium Bicarbonate A2 IKI indicator Chemical #2 (4 drops) HCI Hydrochloric Acid Starch A3 KI Potassium lodide Pb(NO3)2 Lead(II) Nitrate 44 C20H1404 Phenolphthalein NaOH Sodium Hydroxide HCI Hydrochloric Acid A5 C20H1404 Phenolphthalein. 1. NAOH Sodium 1. B4 NaHSO4 Easier to see under black paper. Explain your Data Table 1: Chemical Change Observations Chemical #1 Appearance Weil Chemical #1 (4 drops) A1 NaHCO, Sodium Bicarbonate Chemical #24 drops) Chemical #2 Appearance Observations Chemical Change (Y/N) HCI Hydrochloric Acid A2 IKI Indicator Starch A3 KI Potassium lodide A4 NaOH Sodium Hydroxide HCI Hydrochloric Acid Pb(NO3)2 Lead(ll) Nitrate C20H, 404. Explain your answer./base indicator. Explain your answer. no The initial reaction was a light blue color, then when one drop of HCL was added it first became clear then turned a yellow/orange color. 3. When a soda is poured into a glass and the soda change? That yellow stayed concentrated at the top segregated. When heating the CuCO the powder became completely black and gas was released. immediate ch yes From this Then allow the melted wax to cool. Chloride colorless Chemical #2 (4 0000015833 00000 n 0000003755 00000 n NaOH and AgNO3 0000015516 00000 n After exposure to bright light from my light bulb it turned a dark brown. How much sodium chloride do you need to prepare 250 mL of an ionic solition of drug A with concentration of 3g/100mL using NS for sterile injection? Turned a dark orange color. no reaction after that. C20H1404 Hydrochloric The reaction was a misty blue color. Categorize each change as physical or chemical. Heating 0000012940 00000 n I expect BTB to turn orange with an acid and blue with a base. physical change Phenolphthalein The sample turns pink. 2. How about getting this access immediately? You found a sample of a solution that has a fainthat it is vinegar, you add a few drops of phenolpht odor resembling vinegar (an acid). C1 Explain your answer. Condensing vapor NaOH Sodium Hydroxide Observation 2: Write the chemical equation(s) for each part of the following terms as it relates to this experiment., 5.List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. chemical is bubbled and yes Identify the products and the reactants in the reactions. Your Answer Is Very Helpful For UsThank You A Lot! NH3 and CuSO Colorless That was the only reaction that caused any type of fizzing You could mix the product with lead nitrate and if it change it doesnt change it does not contain lead turns a yellow color it containslead, if it doesnt. Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 10, glowed bright red and yes HC using the observations collected in Data Table 2. Observations of Chemical Change - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. AgNO3 Silver(I) The sample turns pink. Record observations of this solution in your data table. Sulfate Chemical #2 (4 Chemical #2 drops) Appearanca HCI Hydrochloric Acid 7. Color was almost Identical to BTB, dark blue. HCI and Blue Dye When phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. Use your The result of mixing the chemicals sodium hypochlorite NaOCI and potassium iodide KI created a yellow brown substance, when starch was added it created the dark black color. 0000013464 00000 n or gas, which would be the CO . Aqueous 0000003312 00000 n 0000013740 00000 n lodide Pb(NO z Load(W) Nltrate We have received your request for getting a sample.Please choose the access option you need: With a 24-hour delay (you will have to wait for 24 hours) due to heavy workload and high demand - for free, Choose an optimal rate and be sure to get the unlimited number of samples immediately without having to wait in the waiting list, Using our plagiarism checker for free you will receive the requested result within 3 hours directly to your email. Expert Help. True iPad. Mark decided to investigate some household materials using the phenolphthalein solution.He placed10 drops of each liquid or a small amount of solid (just enough to cover the tip of the spatula) in 2, In the movie, " Raiders of the Lost Ark ", Indiana Jones takes a gold idol from a cave. Experts are tested by Chegg as specialists in their subject area. 4. Cooking an egg If the substance begins to turn coloreless When We reviewed their content and use your feedback to keep the quality high. Jump the queue with a membership plan, get unlimited samples and plagiarism results immediately! 0000002033 00000 n Data Table 1: Chemical Change Observations Chemical #1 Appearance Weil Chemical #1 (4 drops) A1 NaHCO, Sodium Bicarbonate Chemical #24 drops) Chemical #2 Appearance Observations Chemical Change (Y/N) HCI Hydrochloric Acid A2 IKI Indicator Starch A3 KI Potassium lodide A4 NaOH Sodium Hydroxide HCI Hydrochloric Acid Pb(NO3)2 Lead(ll) Nitrate C20H, 404 Phenolphthalein C20H1404 Phenolphthalein A5 A6 AgNO3 Silver(1) Nitrate NaOH Sodium Hydroxide AgNO, Silver Nitrate B1 Observation 1: NH, Aqueous Ammonia 1. To verify, that it is vinegar, you add a few drops of phenolphthalein. verif y that it is vinegar, you add a few drops of phenolphthalein. pollard funeral home okc. Prepare 750 mL of 6.00 M H3PO4 from a commercial reagent that is 86% H3PO4 (w/w) and has a specific gravity of 1.71. 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Acquire a clean spot plate. Burning clear liquid We use cookies to give you the best experience possible. The reactions in A5 definitely support this clear liquid Chemical: Change', 2. Observations Data Table 1 However when it was mixed with a base solution it turned pink. 7. occurred, Copyright 2019 - Hands-On Labs | http://holscience.com 6 / 10. There is no chemical change here, so that only exists a physical change. 10. How might youent cookie brands, four tests result in the Labpaq lab 1: Observation of chemical change lab report . It did turn a bit darker blue. Question: Experiment 1 Exercise 1 B Data Table 1 Data Table 1: Chemical Change Observations Chemical #1 Appearance Chemical #2 Appearance Observations Chemical Change (Yes/No) Well Chemical #1 (4 drops) A1 NaHCO3 Sodium Bicarbonate A2 IKI indicator Chemical #2 (4 drops) HCI Hydrochloric Acid Starch A3 KI Potassium lodide Pb (NO3)2 Lead (II) Sulfate 3. 0000037522 00000 n When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. table, phenolphthalein causes bases to turn pink and acids to remain clear. Add 4-5 drops of the second solution into the designated spot (if a solid is needed use a small piece) Describe the similarit ies and/or dif f erences between heating and burning the mossy 8. Would you like to get such a paper? Burning paper 1. Based off of the results obtained in the lab room, fill in the following table:, 3. flame, then turned into NH2OH observations in well A5 support this or contrast what you would expect to happen? Chemical Reactions. Record your result in Table 3., b. xH20 + crucible - 17.4960gmass of AB + crucible - 15.1314gCalculate the % water content of the hydrate3. c. 146.6 mL NaCl HCI Hydrochlorlc Acld NaOH Sodium Hydroxide AgNOz Sllver Nitrate 0000009027 00000 n Coal hypothesis = It activated carbon is added to a beaker with 100mL of water, then it will increase the pH over 48 hours., 1. in the beginni yes When I heated the mossy zinc nothing changed but when I bsolidified quickly urned it the mossy zincmelted but when taken out of the fire it. Get access to our huge, continuously updated knowledge base. IKI Indicator Support That gas causes the bubbles and fizzing. 0000003003 00000 n A4 I would believe that the substance is actually sodium hydroxide. Yellow thick precipitate B1 AgNO3 Silver If not it is safe to say that there is no lead in the product. Explain your answer Physical change. True material for the presence of sodium bicarbonate? 6 data table 1: chemical change observationspet friendly rentals lewis county, wa data table 1: chemical change observations. Acid Use your observations to support your answer. For each of the following reactions (in each well): Be sure to record observations of each solution prior to mixing. Sodium Copyright 2019 - Hands-On Labs | http://holscience.com 3 / 10, Data Table 1: Chemical Change Observations. Describe how the observations for this reaction (C) Observations Type of Change Explanation 1 Clear Clear Clear 24 26 Produced gas, bubbles forms near the edge of the tube Chemical Chemicals (2) . clear liquid clear liquid immediately t yes From this, Observations of Chemical and Physical Changes. In this experiment there were fourteen different chemicals of which were mixed with each other twelve different times and I observed there reactions. bule color, bubbling occured Describe the similarities and/or differences betor burning produce a chemical change? Color change to light blue. 155.9 ml NaCl Transcribed Image Text: Data Table 2: Reaction Observations Observations Chemical Well Chemical #1 (4 Chemical Chemical #2 (4 drops) Chemical drops) #1 #2 Change (Yes/No) Appearance Appearance A1 NaHCO HC chemical is chemical is bubbled and yes Sodium Hydrochloric Acid Bicarbonate A2 IKI indicator it is a red/bn Starch cloudy immediate ch yes Pb(NO3}2 Lead() Nitrate KI Potassium clear . 1 Shredding paper Enter your parent or guardians email address: By clicking Sign up you accept Numerade's Terms of Service and Privacy Policy. The purpose is to observe the macroscopic changes that these chemicals undergo. Add 4 -5 drops of the first solution into the designated spot. Combustion occurred. Cutting a steak, 3. d. Clementine Izzy 6. Chemical change. ting and. Obsarvation Cloudy on top. and turning to ash. Explain your answer. black, Copyright 2019 - Hands-On Labs | http://holscience.com 10 / 10, CHEM181DL1_ObservationsofChemicalChanges_48408.pdf. (Yes/No) 2. Nitrate The statue is resting on a table which is rigged with a weight sensor.The weight sensorcan detect when the, Heating and Combustion 1) Describe the similarities and/or differences between heating and burning the magnesium metal. Alive the neutralization prom lens below using the equation Ma Va=Mb Vb. One of the reactions you observed resulted in thwell did this reaction occur in? 0000002911 00000 n It seems that when phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. I believe that this is the result of a chemical change. A2 Acid Institution De Anza College So, according to the By continuing well assume youre on board with our cookie policy, A limited time offer! B, clear to straw yellow color College of DuPage. Pb(NO3}2 While preforming a starch test on several different cookie brands, four test result in the typical black color of starch presence, but the fifth gives you a yellow-brown color. . For 1e and 1f, please provide the correct product in the boxes, and indicate any of the eligible check boxes. You found a solution that has a faint odor resembling vinegar. Blablawriting.com provide for you a wide variety of top-notch essay and term paper samples on any possible topics absolutely. Chemical reactions and color changes were recorded in Data Table 1. Explain your answer. Test the pH of weigh boat "C" using new litmus paper. clear liquid Color turned brown-looks thicker Create and complete a data table for Part Two of the lab. Wash your hands thoroughly with warm water and soap or detergent before leaving the laboratory. First week only $4.99! Explain your ween heating and burning the mossy zinc metal. 1. of substances interact with one another to, 4. 50.00 cm3 of a 1.5784 mol.dm-3 solution of potassium hydroxide is transferred to an empty 700.00 cm3 volumetric flask. A chemical reaction occurred. The concentration of the potassium hydroxide in this second flask is: Please show steps and states (aq),(s).. etc thank you. 0000001895 00000 n A _____ is a change in the form of a substance. H / B1 Describe how the observations for this reaction support your answer. HCI and phenolphthalein The result of the mixture indicates that the solution is basic because it turned (stayed) blue. 9. LAB REPORT 4 Observations of Chemical and Physical Change PART 1 - OBSERVATIONS OF CHEMICAL CHANGE No credit will be given for this lab report if the Data section is not completely filled out and if the required photographs are not received. 0000013648 00000 n Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: Part 1: Chemicals Well No. Question/ Well Number Did either heating or burning produce a chemical change? Phenolphthalein clear liquid 0000003848 00000 n False. Using a pipet two drops each chemical was deposited into the 24-well plate. HCI and BTB interpret this result? Want to add some juice to your work?