|| || Data Tables: Step 3: Show the calculation of the needed amount of Na2CO3 Convert 1.0g of CaCl2-.2H2O to moles of CaCl2-.2H2O 1.0g x 1 mole CaCl2-.2H2O 147.0 g CaCl2-.2H2O = 0.00680 moles CaCl2-.2H2O The mole ratio is 1:1 Hence if we have 0.00680 moles of CaCl2-.2H2O we will as well need 0.00680 moles of Na-2CO3 Convert moles of Na-2CO3 to grams of Na2CO3 = 0.00680 moles Na-2CO3 x 105.99g Na-2CO3 1
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Description Fixed Charge Metal* + a Nonmetal Rule: Full name of the metal + Stem on the nonmetal + the suffix “ide” Formula Name NaCl Sodium chloride CsF Cesium fluoride CaBr2 Calcium bromide MgO Magnesium oxide Li2S Lithium sulfide Al2O3 Aluminum oxide ZnH2 Zinc hydride AgI Silver iodide SrS Strontium sulfide Ca3N2 Calcium nitride K2Te Potassium telluride Na3N Sodium nitride CaC2 Calcium carbide LiH Lithium hydride Mg3P2 Magnesium phosphide Memorize your fixed charge metals!!!! Group 1A‚ 2A‚3A
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salt to see if it will harm the grass. First‚ thing is to get all the equipment needed to perform this experiment. I will need three round flower pots 1 inch in diameter and height. I will be using ¼ cup of ammonium sulphate fertilizer and ½ cup of sodium chloride concentrations salt‚ rock salt (halite)‚ and calcium magnesium acetate salt (Peeples‚ 1990). The last and final ingredient I will need is three different types of grass sod‚ St. Augustine grass‚ Bahia grass‚ and Buffalo grass cut in 5 inches
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into its components by extraction. The mixture is dissolved in diethyl ether (common name is ether). Both components are soluble in this solvent. Then a 1 M NaOH solution is used to extract the benzoic acid in the form of its water-soluble salt‚ sodium benzoate (three extractions to ensure complete removal)‚ leaving the neutral compound in the ether layer. The three aqueous extracts are combined and the two components are recovered as follow: 1. The neutral compound by washing‚ drying and evaporating
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chemicals were collected in a beaker at the end of the practical and given to an adult to dispose of properly. Method: 1. Following the table‚ 10 drops of Copper Sulphate were placed in each test tube (five test tubes). 2. 10 drops of Sodium Chloride was added to the first test tube‚ 10 drops of Silver Nitrate to the second‚ and so on until each test tube contained Copper Sulphate and one other chemical. 3. Each reaction was recorded and written in the table. (see appendix one for
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was able to pass all of them. I recommend using sodium carbonate as your substance. Of all the substances‚ only two were covalent and two were ionic. The ionic substances‚ sodium chloride‚ sodium carbonate‚ and salicylic acid‚ came close to the description you requested. The covalent substances‚ sucrose and salicylic acid‚ did not match the descriptions. The best substance would definitely be sodium carbonate‚ since it passed all the tests. Sodium carbonate had a high melting point‚ so it will be
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tongs strip of magnesium spatula NaOH HCl sodium nitrate potassium chloride. magnesium sulfate calcium nitrate sodium carbonate. Safety notes: 1. Wear aprons and goggles. Protective gloves are also available. 2.Carefully read the labels of all chemicals before use. Abide
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The Discussion of this experiment began with discussing how many materials we use today are actually mixtures of pure substances. The separation of these materials into their pure substances can be quite challenging. When we are discussing separations of a mixture that contains pure substances‚ it all depends on whether you can separate the substances by physical means. That means‚ utilizing each substances physical properties such as boiling point‚ melting point‚ and magnetism. Separation of a
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External links Properties[edit] Phenol is appreciably soluble in water‚ with about 84.2 g dissolving in 1000 mL (0.88 M). Homogeneous mixtures of phenol and water at phenol to water mass ratios of ~2.6 and higher are also possible. The sodium salt of phenol‚ sodium phenoxide‚ is far more water soluble. Acidity[edit] Phenol is weakly acidic and at high pHs gives the phenolate anion C6H5O− (also called phenoxide):[7] PhOH ⇌ PhO− +
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THE MOLE CONCEPT References : Mohammed and Lambert ( Old Edition) Chapter 11 pg. 107 Mohammed and Lambert ( New edition) Chapter 8 pg 123 Anne Tindale Chapter 10 pg 46 The following topics will be covered : 1. Definition of Relative Atomic and Relative Molecular Masses. 2. Calculation of Relative Molecular Masses 3. Converting Moles to Grams / Grams to Moles 4. Calculation from equations Masses of substances /Volumes of gases / Concentration
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