not only easier to understand and unambiguous‚ but it is also usually shorter than the common way. The IUPAC system’s uses include naming binary compounds between a metal and nonmetal‚ naming binary compounds between two nonmetals‚ naming polyatomic ions‚ and naming acids and bases. To name binary compounds between a metal and a nonmetal‚ there are two different methods the IUPAC system uses. Type one is used for naming metals that form only one cation. In this method‚ the cation is named first
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M10/4/CHEMI/HP2/ENG/TZ1/XX/M+ MARKSCHEME May 2010 CHEMISTRY Higher Level Paper 2 18 pages –2– M10/4/CHEMI/HP2/ENG/TZ1/XX/M+ This markscheme is confidential and for the exclusive use of examiners in this examination session. It is the property of the International Baccalaureate and must not be reproduced or distributed to any other person without the authorization of IB Cardiff. –5– Subject Details: M10/4/CHEMI/HP2/ENG/TZ1/XX/M+ Chemistry HL Paper 2 Markscheme
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Tiffany Ward Scheme For Unknown 2A/B Possible Ions: Cations: Na+‚ K+‚ NH4+ Anions: OH-‚ Cl-‚ NO3-‚ SO42-‚ HSO4- 1.Describe Sample Phase‚ color‚ odor‚ crystal shape‚ amorphous‚ gel-like‚ needle-like‚ powdery‚ etc. 2.Tests on original sample (i) Flame test bright orange Na+ purple K+ no color NH4+ (ii) NH4+ test Place a small portion of original unknown sample in a test tube or spot plate‚ then add a few drops of 1M NaOH solution. At the same time suspend a piece of red
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conducted to work out the concentration of the chloride ions in the school swimming pool water and to see if it fits in the required range of concentration of chloride ions in the swimming pool water. This was done by titrating a small sample of the school swimming pool water with silver nitrate‚ which would form a white precipitate of silver chloride. The equation of this process is: The end point of the titration (when all of the chloride ions have been precipitated) was determined by the formation
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solid Constituent Particles Nature of forces Examples 1 Ionic solids Positive and Negative ions Strong electrostatic forces of attraction LiF‚ KCl‚ KNO3‚ BaSO4 2 Molecular solids Molecules Van der Waal’s forces. Dipole interactions. Hydrogen bonding I2‚ CO2 (solid)‚ HCl‚ Ice 3 Covalent solids Atoms Covalent bonds Diamond‚ Silicon 4 Metallic solids Positive metal ions (Kernels) and mobile electrons Metallic bonds All metals and some alloys Space Lattice
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works by encapsulating the ion. The PTC-ion system has a hydrophilic interior containing the ion and a hydrophobic exterior. For example‚ the nucleophilic aliphatic substitution reaction of an aqueous sodium cyanide solution with the alkyl halide 1-bromooctane does not ordinarily take place because 1-bromooctane does not readily dissolve in the aqueous solution. By the addition of small amounts of a phosphonium salt such as hexadecyltributylphosphonium bromide‚ cyanide ions can be ferried from the
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3.htm In the experiment part (i) (a)‚ the solid copper(II) nitrate is used to dissolve in a test tube filled with half distilled water. The solid copper(II) nitrate ionize in water to form copper(II) ions and nitrate ion. Hence‚ a blue solution is formed due to the blue copper(II) ion present in the solution. When excess solid is added‚ the solution will become saturated and do not allow any solid to dissolve‚ so excess solid will remain in the solution. This is shows that the equilibrium
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DETECTION OF EYE MOVEMENTS USING ELECTROOCULOGRAPHY A Graduate Project Report submitted to Manipal University in partial fulfilment of the requirement for the award of the degree of BACHELOR OF ENGINEERING In Electronics and Communication Engineering Submitted by Rajesh Sunkara Reg. No: 090907193 Under the guidance of Ms. Shruthi.K Assistant Professor DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING MANIPAL INSTITUTE OF TECHNOLOGY (A Constituent College of Manipal University)
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5 Uncertainty in Measurement Precision and Accuracy Significant Figures Significant Figures in Calculations 1.6 Dimensional Analysis Using Two or More Conversion Factors Conversions Involving Volume Chapter 2: Molecules and Ions 2.1 The Atomic Theory of Matter 2.2 The Discovery of Atomic Structure Cathode Rays and Electrons Radioactivity The Nuclear Atom 2.3 The Modern View of Atomic Structure Atomic Numbers‚ Mass Numbers‚ and Isotopes
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orbital. This lowers the energy gap and therefore means less energy is required to excite electron from ground state to excited state. Mass spectrometry: Mass spectrum gives the weight of a molecule Mass spectrometer converts sample into ions‚ and that these ions can be further fragmented (broken down) into smaller molecules. Ionisation can be achieved using various different techniques‚ electron ionisation‚ chemical ionisation and Fast atom bombardment. When sample is ionised the analyser portion
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