Solubility product The Solubility product is related to SPARINGLY SOLUBLE SALTS ONLY!!!!! Examples are silver chloride‚ lead(II) chloride‚ calcium sulphate (in other words‚ it deals with salts commonly called insoluble salts) Consider a sparingly soluble salt MX Imagine the reaction that occurs when the solid is placed in water aMX (s) + H2O [pic] aMn+ (aq) + bXm- (aq) The equilibrium expression would be [Mn+]a [Xm-]b [MX]a [H2O]
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Materials and Methods The laboratory procedures were conducted based on the steps provided in ‘An Introduction to Chemical Systems in the Laboratory’1. Specifically‚ 1.90 grams of KCL was weighed in a 250ml beaker and dissolved in 25 ml of deionized water. This solution was then quantitatively transferred to a 250ml volumetric flask. Proper technique is needed for quantitative analysis. This transfer was done to ensure that there was no detectable KCl left in the beaker. After transferring the
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Biology IA: Quantitative Estimation of Sugars to Soft Drinks Trials Data Collection and Processing: Percentage Transmissions of Light through a Glucose Solution after a Benedicts Treatment | Trial 1 | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Trial 6 | Trial 7 | | Glucose Concentration | Transmission (%)± 0.1 | Transmission (%)± 0.1 | Transmission (%)±0.1 | Transmission (%)± 0.1 | Transmission(%)±0.1 | Transmission (%)±0.1 | Mean (anomalous data not included) ±0.1 | Standard Deviation
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Title: Preparation and Standardization of a Sodium Hydroxide Solution Objective/Purpose: The objective of this experiment will be the standardization of sodium hydroxide using potassium hydrogen phthalate by the titration method. Introduction: The concentration of solutions can be reported in terms of molarity and normality. Molarity is equal to: HCL‚ HBR‚ H2SO4‚ HNO3 M = mol Solute (mol) (Monoprotic) (Diprotic) _______________ V(L)g solutions (L)
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Controlled: The mass of copper and zinc Materials 1. Copper metal and copper ions 2. Zinc metal and zinc ions 3. 2 Filter papers 4. Potassium Chloride (KCl) 5. Voltmeter (+- 0.1) 6. Goggles 7. Lab coat 8. Two Beakers (100ml each one) Method * First‚ put the filter paper with some Potassium Chloride (KCl) until it gets wet. * Then‚ separate the two beakers enough and then put the filter paper as salt bridge. This salt bridge allows electrons to flow between
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Investigating the Determining Characteristics of Cations and Anions Chem 111 Sec 560 Introduction: The purpose of this lab was to study the specific characteristics of cations and anions‚ and ultimately to be able to identify an unknown substance based on our studies and tests using the logic trees developed through the experiment. A logic tree is a graphical display of the findings from this lab which‚ through a series of yes/no questions‚ elimination
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dissolved in water‚ a buffer is formed when the weak acid citric acid is present with sodium citrate (citrate ion) the conjugate base (Buffer Balancing Acts Buffers‚ 2009) "Na3C3H5O7 (aq) + 3 HCl (aq) H3C3H5O7 (aq) + 3 NaCl (aq)" (Senese‚ 2010) By exchanging the Na+ in sodium hydrogen carbonate with the H+ from the excess hydrochloric acid present in the stomach (Stigliani‚ B. 2014)‚ the reaction of sodium citrate to hydrochloric acid reforms
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achieve the best results possible. I will also need to think about what other factors may vary my results to someone else’s and how this could be improved. Equipment Needed: · Beaker · Test-tube · Piece of paper with a cross on · 25ml² of Sodium Phiosulphate · 5ml² of Hydrochloric Acid Factors about the equipment that may affect the results: The amount of one particular quantity‚ or concentration of the acid. The type of acid that was used may either slow down or speed up the reaction
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dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd- ddddhemical changes take place on the molecular level. A chemical change produces a new substance. Examples of chemical changes include combustion (burning)‚ cooking an egg‚ rusting of an iron pan‚ and mixing hydrochloric acid and sodium hydroxide to make salt and water. Physical Changes Physical changes are concerned with energy and states of matter. A physical change does not produce a new substance. Changes in state or phase (melting‚ freezing‚ vaporization‚ condensation
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The aim for this investigation is to investigate the effects of varying the concentration of sodium thiosulfate solution on the rate of the reaction when reacting with dilute hydrochloric acid. It is hypothesized that as the concentration of the sodium thiosulfate solution increases‚ the rate of the reaction will also increase proportionately. Variables The independent variable is concentration. This will be varied by increments of 10mL (10mL to 50mL) and distilled water will be added accordingly
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