'Relative molecular mass' diaporamas de présentation

Chapter 1

Chapter 1. MATTER. 1.1 Atoms and Molecules. At the end of this topic, students should be able to:. Identify and describe proton, electron and neutron. Define proton no.,Z, nucleon no., A and isotope. Write isotope notation.

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Structural Determination of Organic Compounds

Chapter 38. Structural Determination of Organic Compounds. 38.1 Introduction 38.2 Isolation and Purification of Organic Compounds 38.3 Qualitative Analysis of Elements in an Organic Compound 38.4 Determination of Empirical and Molecular Formulae from Analytical Data

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The Mole Concept

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The mass of particles

The mass of particles. Relative isotopic mass, Relative atomic mass, Relative molecular mass, The mole. The relative isotopic mass (I r ) of an isotope is the mass of an atom of that isotope relative to the mass of an atom of 12 C taken as 12 units exactly. Relative isotopic mass.

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Solutions

Solutions. Solutions. A solution is made up of a solute dissolved in a solvent. Example: seawater is a solution. It is made up of salt (the solute) dissolved in water (the solvent). Solutions can be described as concentrated or dilute.

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The International Pharmacopoeia and International Chemical Reference Substances Dr Sabine Kopp Quality Assurance and S

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The International Pharmacopoeia and International Chemical Reference Substances Dr Sabine Kopp Quality Assurance and S

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Empirical Formula

Molecular Formula A molecular formula shows the elements that a compound is made out of and the number of atoms of each element present in one molecule of the compound. The numbers are shown written as subscripts. e.g. The molecular formula of butane is C 4 H 10

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Do now!

Do now!. Can you continue the questions you were doing yesterday? Mr Porter has another sheet if you are finished!. Moles!. Moles!. Equal masses of different elements will contain different numbers of atoms (as atoms of different elements have different masses). Moles!.

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Chemistry

Chemistry. Grade 10 Advanced. Unit 1. STRUCTURE AND BONDING IN MATTER. Name: ------------------------------------- Class: -----------. Unit 1. STRUCTURE AND BONDING IN MATTER.

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The Mole

The Mole. What is a mole??? As we have seen in previous chapters the masses of atoms are very small e.g. mass of proton = 1.67 x 10 -27 kg mass of neutron = 1.67 x 10 -27 kg mass of electron = negligible

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Chapter 1

Chapter 1. MATTER. 1.1 Atoms and Molecules. At the end of this topic, students should be able to:. Describe proton, electron and neutron. Define proton no., Z , nucleon no., A and isotope. Write isotope notation.

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Counting atoms and molecules

Counting atoms and molecules. When conducting a chemical reaction, it is often important to mix reactants in the correct proportions. This prevents contamination of the products by wasted reactants.

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The Mole

The Mole. Mass Relative Atomic Mass Amount Calculations. Mass. Mass is the fancy scientific name for the amount of matter or stuff in an object Mass has the symbol m , and is measured in grams (g) Mass is not the same thing as weight

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What links these pictures?

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Have you ever tried counting the number of rice particles in your bowl?

Have you ever tried counting the number of rice particles in your bowl?. Relative Masses of Atoms and Molecules. Masses of Particles in Chemistry. the mass of a hydrogen atom is 0.000 000 000 000 000 000 000 0014g very small values and very inconvenient to write

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Have you ever tried counting the number of rice particles in your bowl?

Have you ever tried counting the number of rice particles in your bowl?. Relative Masses of Atoms and Molecules. Masses of Particles in Chemistry. the mass of a hydrogen atom is 0.000 000 000 000 000 000 000 0014g very small values and very inconvenient to write

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Dextran

Boc Sciences offers cas 9004-54-0 Dextran in bulk,please inquire us to get a quote for 9004-54-0 Dextran. https://www.bocsci.com/dextran-cas-9004-54-0-item-79228.html

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Atoms: Ions: Isotopes:

Atoms: Ions: Isotopes:. Development of the atomic theory. Define Ar : Define Relative isotopic mass: Define Ar and Relative molecular mass: How to Calculate Ar : How to Calculate Ar or Mr of a substance:. Subshells and orbitals:. Subshell Notation:

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