phenolphthalein on each element and recorded the reaction. The students discovered that sodium and magnesium reacted‚ but aluminum did not. Sodium turned into a gas when it touched water and then turned pink with the phenolphthalein. Magnesium bubbled with the water and then turned slightly pink with the phenolphthalein. Aluminium had no reaction to the water or to the phenolphthalein. After that‚ the students washed out the petri dishes and dried them.
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makeup it to 1l standard flask. iii)Titration for normality of NaOH * take 20ml of NaOH solution in 100ml conical flask add 1 drop of phenolphthalein * the colour changes to pink colour * take oxalic acid in 50ml burette and titrate against NaOH solution .The end point is the appearance of pale permanent pink colour. Formula for normality Normality of NaOH=(burette reading*strength of oxalic acid)/20ml of NaOH Strength of oxalic acid=amount of OXALIC ACID(gm)* amount of NaOH /mol
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Case Study # 2 – Omni channel: Victoria’s Secret Due – 4/18– Ten points 1.) In the context of Omni Channel Retailing‚ how do the competing retailers provide a seamless and integrated presence in their various online channels? Which ones do you believe are more compelling? What suggestions for improvement might you offer them? Please support your reasoning. Omni Channel Retailing approaches all customers with a cohesive presence through all channels of their distribution. The purpose
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it is understood that she stands for the faith of Young Goodman Brown. Not only is her name Faith but the narrator says‚ “Faith‚ as the wife was aptly named…” (Hawthorne 452). In the beginning of the story it also introduces the symbol of Faith’s pink ribbons.
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The story Young Goodman Brown is by the famous author Nathaniel Hawthorne. Where Young Goodman Brown‚ leaves his wife Faith. He ventures off into the gloomy forest of Salem. He is quickly approached by an older man and his companion. Young Goodman Brown follows these two men wherever they go. Along their path they meet a woman‚ Goody Cloyse‚ who taught Young Goodman Brown his catechism. The companion starts to look like a devil and the woman starts to look like a witch. After some time Young Goodman
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"Sometimes I feel discriminated against‚ but it does not make me angry. It merely astonishes me. How can anyone deny themselves the pleasure of my company? It’s beyond me." -Zora Neale Hurston The Harlem Renaissance was a cultural movement that started in the early 1920s. Some people referred to it as the “New Negro Movement”. Twas all centered in what was and is Harlem‚ New York. Lots of French speaking individuals who were of African and Caribbean descent who lived in Harlem were
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colored stones that are 4 pink stones‚ 9 orange stones and 5 green stones. Ryan picks one stone‚ records its color and puts it back in the jar. Then he draws another stone. What is the probability of taking out an orange stone followed by the green stone? 4. Henry has 3 black shirts and 7 blue shirts in his wardrobe. Two shirts are drawn without replacement from the wardrobe. What is the probability that both of the shirts are black? 5. Andrew has a box which contains 4 pink blocks‚ 5 yellow blocks
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The Perfect Day When I was a little girl I would dream about my wedding day. I would pick out what colors I wanted. I had to have almost everything be pink because it was my favorite color. I used to even play dress up with all of my younger sisters. I would always have to be the princess‚ and they could dress up as anything else. I had a special white fluffy dress that my mother had made me for Halloween. No one was allowed to wear it but me. I would always say my wedding day would be the happiest
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reviews are the pink team review‚ red team review‚ and gold team review. The pink team starts the initial review and is conducted while the proposal is in-process. Conducted as an informal review‚ the pink team checks the proposal draft against the matrix to ensure all RFP requirements meet‚ and then findings are recorded on an evaluation form. The form is then given back to the proposal team so corrections can be made where necessary. The red team review is more intricate than the pink review. Each
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Purpose Use a standardized potassium permanganate solution to analyze an unknown iron solution by using redox titration. Theory Reduction-oxidation titration is an analytical method based on electrons transferring between an oxidizing agent and a reducing agent in solutions. Chemical analysis can be built on Redox titration if four criteria are met: a) The reaction is completed in a thermodynamically spontaneous condition. b) The reaction is fast enough to give an operational result instantly
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