Finding the formula of Hydrated Zinc Sulphate Results Table of masses and probabilities | Mass (g) | Uncertainty (g) | Test tube | 46.94 | ±0.01 | Test tube and hydrated sample | 59.94 | ±0.01 | Hydrated sample | 13.00 | ±0.02 | Test tube and anhydrous salt | 54.15 | ±0.01 | Anhydrous sample | 7.21 | ±0.02 | Mass of water | 5.79 | ±0.04 | Calculations to find the Formula of Hydrated Zinc Sulphate * Mr of Zinc Sulphate ZnSO4 = 65 + 32 + (16 x 4) =161
Premium Sulfuric acid Measurement Zinc
Unit 2 Home Labs Goals: • Read Safety • Perform Changes: Physical or Chemical Lab • Perform Special Physical Properties of Matter Lab • Perform Paper Chromatography Lab Turn-in: 1) Changes: Physical or Chemical Lab - Completed Procedure / Observations‚ questions‚ and a written description of most important concept that you learned in the discussion section. 2) Special Physical Properties of Matter Lab – Completed Procedure / Observations‚ questions‚ and
Premium Chemical reaction Chemistry Chemical substance
Determining Operating Systems and Software Applications: Barnes & Noble Team B: Jameka Burris‚ Eric Hoormann‚ and Jennifer Monereau BIS/320 June 16‚ 2014 Matthew Moyer Determining Operating Systems and Software Applications: Barnes & Noble This paper will describe how Barnes & Noble (B&N) uses an operating system and software applications to help the company reach its objectives (see appendix A). This paper will also describe the functions of computer hardware components used in the organization
Premium Microsoft Database Database management systems
Toxicology Lab 1. In this investigation‚ a wide range of concentrations of Sodium Chloride (NaCl) solution were created and the effects that they had on radish seeds were tested. This ultimately created a doseresponse experiment in which it was detectable whether or not radish seeds were a reliable bioassay for the toxicity of NaCl. The goal of this experiment was to determine a correlation between toxicity and seed germination/radicle
Premium Germination Seed Embryo
cheese. Lactic acid bacteria(LAB)‚ a bacteria that can be found in the production of cheese‚ its stress gene was investigated in the experiment by using various biochemical and genetic techniques to identify and extract. The characterisation of the strain illustrates how identification of strains differ using different methods‚ such as gram stain and 16s rRNA screening. After the characterisation‚ the stress gene isolation assist the further understanding of the gene on LAB be giving different stress
Premium Bacteria
Modeling Effective Dose: Salt Tasting lab Purpose The purpose of this lab is to see at what measurements (of salt) can the salt be detected by taste. Abstract The science of toxicology is based on the principle that there is a relationship between a toxic reaction (the response) and the amount of poison received (the dose). An important assumption in this relationship is that there is almost always a dose below which no response occurs or can be measured. A second assumption is that once a maximum
Premium Taste Sodium chloride Salt
Determining an enthalpy change of a displacement reaction Aim: To determine the enthalpy change for the displacement reaction between zinc powder and copper (II) sulphate solution. Zn (s) + Cu2+ (aq) → Cu2+ (s) + Zn2+ (aq) Theory: For the displacement reaction‚ an excess amount of zinc powder is added to the measured amount of aqueous copper (II) sulphate. The temperature change over a period of time has to be measured and thus‚ the enthalpy change for the reaction can be measured. The equation
Premium Zinc Thermodynamics
of Engineering (Hons) (Chemical Engineering) JULY 2009 Universiti Teknologi PETRONAS Bandar Seri Iskandar 31750 Tronoh Perak Darul Ridzuan ABSTRACT The objective of this project is to optimize the preparation of modified Calcium Oxide (CaO) to capture CO2 by carbonation through hydration of ethanol/water. The carbonation reaction is the basis for CO2 capture systems. However CaO as regenerable CO2 sorbents in industrial processes is limited by the rapid decay of the carbonation
Premium Carbon dioxide
The purpose of this lab was to use a calorimeter to learn when energy is being released or absorbed in a chemical reaction. My lab partner and I had to determine the heat exchanged when solid magnesium hydroxide is mixed with solid citric acid‚ using a coffee cup calorimeter. Given that citric acid is soluble in water is the property that makes this reaction possible. The first law of thermodynamics and Hess’s law are also present within this experiment. Knowing the difference between endothermic
Premium Thermodynamics Chemistry Energy
Lab 5 The Diffraction Grating Chinua McDonald Objective: To measure the wavelength of light with a diffraction grating. Theory: The two types of diffraction gratings are the transmission and reflection gratings. They are made by ruling on a piece of glass or metal a number of evenly spaced lines with a fine diamond point. Diffraction phenomena can be analyzed in terms of Huygens’ principle‚ according to which every point on the wave front of a wave should be considered as a source
Premium Light Diffraction Wavelength