"Amount of Matter" Important elements in seawater - sodium and chlorine PPT (Unit of amount of matter in Lesson 1 - mole)

Description

"Amount of Matter" Important elements in seawater - sodium and chlorine PPT (Unit of amount of matter in Lesson 1 - mole)

Part One: Learning Objectives

Curriculum Standards

1. Understand the meaning and application of the quantity of matter, Avogadro's constant, and molar mass, and appreciate the important role of quantitative research in chemical science.

2. Be able to understand the composition of matter and its chemical changes based on the amount of matter, and perform simple calculations using the relationship between the amount and molar mass of matter.

core competencies

1. Concept of change: Understand the important role of the quantity of matter in quantitative chemical research.

2. Macroscopic identification and microscopic analysis: Establish the concept of the quantity of matter, and quantitatively understand the composition of matter and the chemical changes of matter based on the quantity of matter.

Amount of matter PPT, part 2 content: Knowledge point 1 Amount of matter Avogadro’s constant

1. amount of matter

(1) Concept: represents the aggregate of ____________________, which is one of the seven basic physical quantities in the International System of Units.

(2) Symbols and units: The symbol is _____ and the unit is _____.

2. Moore

(1) Meaning: The unit of __________, the symbol is _____.

(2) Standard: The number of particles contained in 1 mol of particle aggregate is approximately __________.

3. Avogadro's constant

(1) Definition: The number of particles in 1 mol of any particle, the symbol is _____, usually represented by ____________________.

(2) The relationship between the amount of matter, Avogadro’s constant and the number of particles (N): n=NNA.

Troubleshooting

"Four modernizations" understand the quantity of matter

Proprietary The four words "quantity of matter" are a whole and cannot be separated or added. For example, it cannot be said as "quantity of matter" or "quantity of matter", etc.

Microscopic is only used to describe microscopic particles, such as atoms, molecules, ions, neutrons, protons, electrons, etc. and specific combinations of these particles, such as NaCl; it cannot represent macroscopic substances, such as rice.

Be specific. You must specify the type of specific particles, such as "1 mol O", "2 mol O2", "1.5 mol O3", you cannot say "1 mol oxygen"

Collected Amounts of matter can represent specific combinations or aggregates of multiple particles, such as "1 mol NaCl" "0.5 mol H2SO4"

use as you learn

1. Which of the following statements is correct ()

A. The mole is a physical quantity that represents the number of particles

B． The amount of a substance refers to the number of particles it contains

C. The quantity of matter is a physical quantity that measures the aggregate number of particles contained in the matter.

D． The unit of quantity of matter - mole only applies to molecules, atoms and ions

2. Which of the following statements about Avogadro's constant is correct ()

A. 6.02×1023 is called Avogadro’s constant

B． The value of Avogadro's constant is approximately 6.02×1023

C. The amount of a substance containing Avogadro's number of atoms is 1 mole

D． 1 mole of chlorine contains 6.02×1023 chlorine molecules

3. Which of the following statements is wrong ()

A. 1 mol of SO2 contains 2 mol of oxygen atoms and 1 mol of sulfur atoms

B． There are approximately 1.204×1024 nitrogen molecules in 1molN2

C. The number of atoms contained in 0.1molH2O is approximately 0.3×6.02×1023

D． The amount of oxygen atoms in 3.01×1023 CO2 molecules is about 1 mol

Amount of substance PPT, part 3 content: Knowledge point 2 Molar mass

1. Definition: The mass of a _______________ substance. The symbol is _____ and the unit is ____________________.

2. Numerical value: The molar mass, measured in g/mol, is numerically equal to the _______________ or _______________ of the particle.

3. The relationship between the amount, mass and molar mass of a substance: n=mM.

Troubleshooting

1. How to calculate molar mass

2. Correlation calculations between the amount of matter, the mass of matter, and the number of particles

use as you learn

1. Which of the following statements is correct ()

A. The molar mass of oxygen is 32g

B． The mass of 1molCO2 is 44g·mol-1

C. The molar mass of O2 (unit is g·mol-1) is numerically equal to its relative molecular mass

D． The molar masses of different substances must be different

Analysis: Choose C. The unit of molar mass is g·mol-1, A is wrong; the mass of 1 molCO2 is the total mass of NA CO2, and its unit should be g, not g·mol-1, B is wrong; the molar masses of different substances are not necessarily different , for example, the molar masses of N2 and CO are both 28g·mol-1, D is wrong.

Quantity of matter PPT, part 4 content: Qualification examination training

1. Which of the following statements is incorrect ()

A. The common unit of molar mass is g·mol-1

B． The value of Avogadro's constant is approximately 6.02×1023

C. The molar mass of sulfur dioxide is 64g·mol-1

D． The molar mass is 6.02×1023 times the relative atomic mass.

2. Which of the following statements is correct ()

①2mol iron atoms ②1molFe3+ ③0.5mol oxygen

④0.5mol nitrogen molecule ⑤The molar mass of ammonia is 17g

A. ①③④ B. ①②④⑤

C. ①②④ D. ①②③④⑤

3. When it snows, snow melting agents are commonly used to clean the road surface, and potassium acetate (CH3COOK) is a more effective snow melting agent. Which of the following statements about 1molCH3COOK is correct ()

A. 1 mol CH3COOK contains 1 mol potassium

B． The molar mass of CH3COOK is 98g

C. 1 mol CH3COOK contains 2 mol oxygen

D． 1molCH3COOK contains approximately 3×6.02×1023 H

Keywords: Free download of the PPT courseware for high school chemistry compulsory course 1 of the People's Education Press, PPT download of the amount of matter, PPT download of the important elements sodium and chlorine in seawater, PPT download of the unit mole of the amount of matter, .PPT format;

For more information about the PPT courseware "The important elements sodium and chlorine in seawater, the amount of substances, the unit of moles of substances", please click on the important elements sodium and chlorine in seawater, ppt, the amount of substances, the unit of moles, ppt tag.

"Physical Quantities Commonly Used in Chemistry - Quantity of Substances" Understanding Chemical Science PPT Courseware (Lesson 3: Amount and Concentration of Substances):

"Amount of Physical Quantities Commonly Used in Chemistry" Understanding Chemical Science PPT Courseware (Lesson 3: Amount and Concentration of Substances) Part One Content: Learning Objectives Course Standards 1. Use the amount of substances, molar mass, molar volume of gases, and the amount and concentration of substances The interrelationship between...

"Commonly used physical quantities in chemistry - the amount of matter" PPT courseware for understanding chemical science (lesson 2: molar volume of gases):

"Amount of Physical Quantities Commonly Used in Chemistry" Understanding Chemical Science PPT Courseware (Lesson 2: Gas Molar Volume) Part One Content: Learning Objectives Course Standards Use the relationship between the amount of matter, molar mass, and gas molar volume to perform simple calculations . nuclear..

"Commonly used physical quantities in chemistry - the amount of matter" PPT courseware for understanding chemical science (lesson 1, the amount of matter and its unit molar mass):

"Amount of Physical Quantities Commonly Used in Chemistry" Understanding Chemical Science PPT Courseware (Lesson 1 Amount of Substance and Its Unit Molar Mass) Part One Content: Learning Objectives Course Standards Can understand the composition of matter and its chemical changes based on the amount of matter, and use The amount of matter,...

File Info

Update Time: 2024-11-02

This template belongs to Chemistry courseware People's Education Press High School Chemistry Compulsory Course I industry PPT template

Preview