Determining Percent of Water Crystallization and the Chemical Formula of a Hydrate Aim: To determine the percent water of crystallization and the chemical formula of a hydrate Materials * 400 ML beaker * Glass rod * 3 to 5 grams of hydrated copper (II) sulfate CuSO4 (crushed) * Bunsen burner * Spatula * Heating pad * Clamp and stand * Electronic balance Procedures Refer to Lab sheet Observations 1. The powder seems to be very bright and shiny before any heating 2.
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[ print page ]03.09 Molar Mass of Compounds: Determining the Formula of a Hydrate—Text Version When hydrates are heated‚ the water of hydration evaporates and is released as vapor. The remaining solid is known as the anhydrous salt‚ which is the compound same compound without the water molecules trapped inside. Title:The title of the lab should be at the top of the lab report. Purpose: In one or two complete sentences‚ state the purpose of this laboratory investigation. Materials: List
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Analysis of a Hydrated Crystalline Compound Katie Sanders Science Block 3 February 29‚ 2012 Title: Analysis of a Hydrated Crystalline Compound Purpose: The purpose of our experiment was to determine the amount of water in copper sulfate pentahydrate expressed as a percent. Hypothesis: I think that bluestone crystals are 20% water‚ because it’s called pentahydrate (penta means five) and 1/5 of 100 (since it’s expressed as a percent)
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Hydrated Crystals Lab Pre-Lab Questions Observations of hydrated MgSO4 | Shiny‚ clear‚ chunks of crystals‚ white | Mass of crucible and lid | 11.36 grams | Mass of crucible‚ lid‚ and hydrated MgSO4 | 14.38 grams | Mass of hydrated MgSO4 | 3.00 grams | Mass of crucible‚ lid‚ and anhydrous MgS04 | 12.82 grams | Mass of anhydrous MgSO4 | 1.45 grams | Mass of water in hydrated MgSO4 | 1.55 grams | Moles of anhydrous MgSO4 | 0.0120 moles | Moles of water in hydrated MgSO4 |
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Hydrated Crystals LAB PURPOSE: The purpose of this lab was to determine the percent of water in the given hydrate. MATERIAL/EQUIPMENT LIST: Crucible and cover Clay Triangle Crucible Tongs PROCEDURE: 1. First‚ the crucible and crucible cover were cleaned and dried. 2. The crucible and crucible cover were then placed on the clay triangle and heated with the Bunsen Burner for 3 minutes. 3. After this‚ the crucible and crucible cover
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As the weather gets warmer‚ staying hydrated should be a top priority. While water is the preferred method for staying hydrated in the heat for many people‚ it is not the only option. If you or your kids do not like drinking straight water‚ or if you want to add some variety to your hydration routine‚ consider implementing some tasty alternatives. Watermelon Watermelon is over 90 percent water‚ making it a great hydration option. It can be cut into slices and eaten. It can be blended up and made
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up a hydrated salt in order to determine the percentage of water inside of this hydrated salt. We heated up the salt in order to boil off the water‚ which allowed us to find the weight of the CuSO4 by itself. By comparing this final weight with the original weight and subtracting the difference‚ we were able to compile data about how much the weight of the hydrated salt decreased as the water gradually boiled away. In doing so‚ we were able to find the total weight of the water in the hydrated salt
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Title: Formula of a Hydrate. Objective: Determining the percentage of water and the chemical formula of a hydrate. Background: Water has a polar structure and it has positively and negatively charged parts within each molecule. This gives it a strong attraction toward ions. The ions in some salts attract and form strong bonds with water molecules. These salts‚ when they have absorbed water‚ are called hydrates. Anhydrous salts are salts that can form hydrates but which have had all the water
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Experimental Errors and Uncertainty No physical quantity can be measured with perfect certainty; there are always errors in any measurement. This means that if we measure some quantity and‚ then‚ repeat the measurement‚ we will almost certainly measure a different value the second time. How‚ then‚ can we know the “true” value of a physical quantity? The short answer is that we can’t. However‚ as we take greater care in our measurements and apply ever more refined experimental methods‚ we can reduce
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Shawn Dubbs Lab 1 The Mole Concept of and the Chemical Formula of a Hydrate Abstract: The objective of this lab was to conduct an experiment to analyze the molar components in alum. This was conducted by heating the alum till the water had evaporated and then determining the number of moles for each component. Then using the these amounts to figure out the empirical formula for alum. Results: In order to determine how much of each separate component a total mass was taken before hand for
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