Sonia’s smoothies 1) Nick calculated that of 200 customers who completed the questionnaire at the rock festival‚ the mean age was 23. The age distribution conformed to a curve of normal distribution with a standard deviation of 5. Calculate the number of customers aged 33 and over who featured in Sonia’s survey (33-23)÷5 = 2 2% of 200= 4 Answer= 4 2) With reference to the report on the UK smoothie market (appendix 2) analyse two limitations of using secondary sources as the
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inappropriate contact with it.To match with the color and consistency of other inks‚ we will be adding other substances‚ specially vinegar and cornstarch‚ which are common and easy to find. Statement of the Problem Generally‚ this investigatory project aims to find out if tea bags can be used to create an ink. Specifically‚ it aims to answer the following questions: 1. Can vinegar strengthen the color of the product‚ ink? 2. Can cornstarch contribute to achieving the right consistency of the ink?
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The purpose of this experiment is to find out that a homemade flea shampoo for dogs is as effective as those bought in a store. We first chose a recipe from the internet and bought the materials needed. The main ingredients used were apple cider vinegar and dye-free liquid dish detergent. We mixed all the materials together and then tested our product. Table of Contents Chapter 1: Introduction a. Background of the Study--------------------------------------------------------page 1 b. Statement
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spoken. His mother and father are also of Hispanic decent and both work in the education system. I planned a science experiment for Jesus which I decided to name‚ “Vinegar and Oil”. The experiment had Jesus mix oil and vinegar together to see if they will mix. The materials involved were one cup of vegetable oil‚ one cup of vinegar‚ one egg‚ and two bowls. The brisk air outside had us do the experiment inside his house. I prearranged and gathered all the materials needed so
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Also known as: ethanoic acid‚ Glacial acetic acid‚ Ethylic acid‚ Vinegar acid‚ Acetic acid‚ glacial‚ Methanecarboxylic acid‚ Acetasol‚ Essigsaeure Molecular Formula: C2H4O2 Molecular Weight: 60.05196 Acetic acid is a weak acid which is probably most famous for being the primary acid in vinegar. In fact‚ acetic acid has a wide range of uses beyond sprinkling on salads‚ and it is produced in large volumes all over the world. People have been working with this acid in a number of contexts for
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try SOS pads. tweezers vinegar test tube (in your kit) water petri dish (in your kit) Part II: hydrogen peroxide small pieces of raw potato (yeast or beef liver may be substituted for the potato) small bowl Procedures: Part I: Reaction between iron and oxygen 1. Break off a small piece of steel wool and soak it in vinegar for at least one minute. Use tweezers to push the steel wool around to remove all bubbles. 2. Using the tweezers‚ lift the steel wool out of the vinegar and shake if gently over
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friends. First you will need an egg. Then get a bowl. Also you will need vinegar. After you have all those here is what you will need to do. Boil the egg or eggs that you have. After you boil the egg let it set for at least an hour. Then set the egg in a bowl. When you have all that done just put vinegar in the bowl with the hard boiled egg ( How to make a bouncy egg). After letting the hard boiled egg set in the vinegar for three days take it out and let it set on a paper towel for a couple of
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fun in the process. LITERATURE: The acids in the vinegar make the shell deteriorate. Eggs contain "calcium carbonate"(this is what makes it hard)‚ and vinegar is an acid. When they both combine a chemical reaction takes place‚ and carbon dioxide is released. This is what bubbles are made of. The vinegar makes the egg soft because it takes all the carbon out. Since the egg shell is made out of "calcium carbonate" and is "eaten" up by the acidic vinegar. It leaves behind the inner membrane and gives
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it can be declared that oxidation is faster in vinegar‚ than any other liquid. -Introduction: All of the people all around the globe thinking WHY do apples turn brown and what makes this happens. Well that was our main aim to this experiment conducted.Me and my group wanted to find out exactly what are the factors that increase or even decrease the amount of oxidation in (peeled)pieces of apples. This report presents the three liquids;vinegar‚tap-water and milk each of which includes peeled
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determine the molarity and weight/volume percent of acetic acid in vinegar by titration with sodium hydroxide to a phenolphthalein endpoint. This procedure may be modified by titrating an acidic beverage such 7-up or Sprite. Equipment and Material (Total Time 60 – 90 min.) Variety of Berel Pipet Long glass stirring rod Wash bottle 10-mL graduated cylinder 100 mL beakers Material NaOH‚ Sodium hydroxide Titrant solution White vinegar phenolphthalein Distilled water Discussion Acetic acid
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