from test tube K-5 turned red litmus paper to blue which indicates a strong base (NaOH). Solutions in test tubes K-4 and K-6 are both strong acids which turned blue litmus paper to blue. Silver nitrate (K-7) produces precipitate with both acids and Barium nitrate can only produce precipitate with H2SO4 and it remains clear in HCl‚ K-3 precipitated with K-4 but did nothing with K-6‚ which proves that K-4 is H2SO4 and K-6 is HCl. Introduction: 1Water has many unique chemical and physical properties
Premium Solubility Ammonia Nitric acid
Abstract Gravimetric analysis describes the methods for finding the chemical constituent of analyte in a solution through analytical chemistry. This method uses the mass of solid SO42-‚ with an unknown quantity and quality‚ to qualitatively determine the makeup of the solid SO3-. Two separate experiments with the initial compounds of BaCl2 and SO42- were put into solution to allow for the BaSO4 precipitate to form. Through filtration and ignition of precipitate containing ashless papers
Premium Analytical chemistry Filter paper
cork or split stopper small rubber band crucible with cover balance lab burner Patt III‚ Percent Sulfate Test Materials alum crystals‚ KAl(S04)z·12H20 ring stand‚ ring‚ and clay triangle tongs or forceps alum crystals‚ KAl(S04)z·12H20 0.20 M barium nitrate solution ring stand‚ ring‚ and wire gauze 50 mL or 100 mL graduated cylinders glass stirring rod 250 mL beaker watch glass to fit the 250 mL beaker balance Gooch crucible filter apparatus rubber policeman or other scraping tool Advanced
Premium Laboratory equipment Alum
periodic table. ____________________________________________________________________________________ MATERIALS AND METHODS For Group IA and IIA Elements Place a small amount of each sample of Lithium‚ Sodium‚ Potassium‚ Magnesium‚ Calcium and Barium in different test tubes. Identify the physical state‚ color and appearance of each. Test the solubility in 10mL of water. For Group IVA Elements Place a small amount of each sample of C‚ Sn‚ Si and Pb in different test tubes. Identify the physical
Premium Chemistry Periodic table Chemical element
VCE Chemistry Week 1 - Chemical Analysis (1) Horizen Education February 8‚ 2013 1 1.1 Review: Gravimetric and Volumetric Analysis Gravimetric Analysis Solubilities Always soluble: Usually soluble: Exceptions: Na+ ‚ K+ ‚ NO3− ‚ CH3 COO− ‚ NH+ 4 Cl− ‚ I− ‚ Br− i. Sodium carbonate and Silver nitrate ii. Iron (II) sulfate and Lead (II) nitrate iii. Sodium nitrate and Nickel sulfate iv. Potassium hydroxide and Copper (II) nitrate v. Sodium sul de and Cadmium sulfate Ho
Premium Solubility Chemistry Solution
Selective Precipitation of the Barium Magnesium Group ABSTRACT The purpose of this lab was to identify the cations from the barium magnesium group present in an assigned unknown solution through selective precipitation. This was a qualitative lab where the theory of the common ion effect was used in several steps. Once the experiment was completed‚ it was determined that unknown solution #4 contained Ba2+‚ Sr2+‚ and Mg2+ ions. INTRODUCTION Selective precipitation is a part of chemistry
Free Solubility Solid Precipitation
First we will place 0.5 mL of each solution in the 24-well plate. I placed the following solutions in the following locations: SOLUTION WELL PLATE LOCATION Sodium Nitrate NaNO3 A1 Strontium Nitrate Sr(NO3)2 B1 Potassium Nitrate KNO3 C1 Barium Nitrate Ba(NO3)2 A6 Cupric Nitrate Cu(NO3)2 B6 Lithium Nitrate LiNO3 C6 Calcium Nitrate Ca(NO3)2 D6 Unknown C4 I assembled my needed equipment‚ my burner fuel‚ my non-plastic middle cotton swabs and my well plate with the
Premium Potassium Metal Light
Emission Spectra & Flame Tests Intro The emission spectrum is used in modern chemistry to help further studies of wavelengths and the spectrum. When a metal in a compound reacts in a flame and produces a color‚ it helps to show the strongest color in the emission spectrum. The purpose of performing these operations on the flame was to see how different metals would react. Using a spectroscope‚ it is possible to observe the line emission spectrum produced by sunlight‚ artificial light‚ and
Premium Sodium chloride Light Potassium
Carlie Haeffner Qualitative Analysis March 20‚ 2015 The purpose of this lab is to identify unknown ions in a solution by using a type of chemical reaction called precipitate reactions. The key to finding which ions are present in a solution is to form a precipitate which makes the ions “come out” in a reaction (McNeil‚ 2013-2014). Water is used in these experiments to act as a solvent. Since water is a polar molecule‚ the slightly positive and negative charges will sometimes pull apart molecules
Premium Chemistry Water Experiment
ABSTRACT The aim of technology is to make products in a large scale for cheaper prices andincreased quality. The current technologies have attained a part of it‚ but themanufacturing technology is at macro level. The future lies in manufacturing productright from the molecular level. Research in this direction started way back in eighties. At that time manufacturing at molecular and atomic level was laughed about.But due toadvent of nanotechnology we have realized it to a certain level. One such
Premium Gastroenterology Image sensor Digestion