What are formulas for calculating chemical volume included in grade 8 curriculum in Vietnam? What is vtv5 trực tiếp bóng đá hôm nay duration of implementation duration of vtv5 trực tiếp bóng đá hôm nay grade 8 Natural Science curriculum in Vietnam?
What are formulas for calculating chemical volume included in grade 8 curriculum in Vietnam?
Calculating chemical volume is one of vtv5 trực tiếp bóng đá hôm nay subjects included in vtv5 trực tiếp bóng đá hôm nay Grade 8natural sciencecurriculum. Some Grade 8 chemical volume calculation formulas are as follows:
1. Calculating Volume by Number of Moles
Under standard conditions, vtv5 trực tiếp bóng đá hôm nay volume of gas equals vtv5 trực tiếp bóng đá hôm nay number of moles times 22.4. vtv5 trực tiếp bóng đá hôm nay specific formula for calculating volume by number of moles is as follows:
V = n * 22.4
Where:
V is vtv5 trực tiếp bóng đá hôm nay volume of gas under standard conditions (l)
n is vtv5 trực tiếp bóng đá hôm nay number of moles of gas under standard conditions (mol)
2. Calculating Volume by Weight
vtv5 trực tiếp bóng đá hôm nay volume of a solution or substance is determined by vtv5 trực tiếp bóng đá hôm nay quotient of vtv5 trực tiếp bóng đá hôm nay weight of vtv5 trực tiếp bóng đá hôm nay solution or substance and vtv5 trực tiếp bóng đá hôm nay density of vtv5 trực tiếp bóng đá hôm nay solution or substance. vtv5 trực tiếp bóng đá hôm nay specific formula for calculating volume by weight is as follows:
Where:
V is vtv5 trực tiếp bóng đá hôm nay volume of vtv5 trực tiếp bóng đá hôm nay solution or substance (m3)
m is vtv5 trực tiếp bóng đá hôm nay weight of vtv5 trực tiếp bóng đá hôm nay solution or substance (kg)
D is vtv5 trực tiếp bóng đá hôm nay density of vtv5 trực tiếp bóng đá hôm nay solution or substance (kg/m3)
3. Calculating Volume by Molar Concentration
vtv5 trực tiếp bóng đá hôm nay volume of a solution is determined by vtv5 trực tiếp bóng đá hôm nay quotient of vtv5 trực tiếp bóng đá hôm nay number of moles of solute divided by vtv5 trực tiếp bóng đá hôm nay molar concentration of that solution. vtv5 trực tiếp bóng đá hôm nay specific formula for calculating volume by molar concentration is as follows:
Where:
V is vtv5 trực tiếp bóng đá hôm nay volume of vtv5 trực tiếp bóng đá hôm nay solution (l)
n is vtv5 trực tiếp bóng đá hôm nay number of moles of vtv5 trực tiếp bóng đá hôm nay solute (mol)
CM is vtv5 trực tiếp bóng đá hôm nay molar concentration of vtv5 trực tiếp bóng đá hôm nay solution (mol/l)
4. Calculating Air Volume
vtv5 trực tiếp bóng đá hôm nay volume of air is five times vtv5 trực tiếp bóng đá hôm nay volume of oxygen. vtv5 trực tiếp bóng đá hôm nay specific formula is as follows:
Vkk = 5.VO2
Where:
Vkk is vtv5 trực tiếp bóng đá hôm nay volume of air (l)
VO2 is vtv5 trực tiếp bóng đá hôm nay volume of oxygen (l)
Summary of chemistry volume calculation formulas for Grade 8
What are formulas for calculating chemical volume included in grade 8 curriculum in Vietnam? What is vtv5 trực tiếp bóng đá hôm nay duration of implementation duration of vtv5 trực tiếp bóng đá hôm nay grade 8 Natural Science curriculum in Vietnam? (Image from vtv5 trực tiếp bóng đá hôm nay Internet)
What is vtv5 trực tiếp bóng đá hôm nay implementation duration of vtv5 trực tiếp bóng đá hôm nay Grade 8 natural science curriculum in Vietnam?
According to vtv5 trực tiếp bóng đá hôm nayChương trình giáo bóng đáfor vtv5 trực tiếp bóng đá hôm nay subject of Natural Science issued together withThông tư 32/2018/TT-BGDĐT:
vtv5 trực tiếp bóng đá hôm nay duration for each grade is 140 periods per academic year, taught over 35 weeks. vtv5 trực tiếp bóng đá hôm nay percentage distribution of periods for each topic is presented in vtv5 trực tiếp bóng đá hôm nay following table:
| Content | Grade 6 | Grade 7 | Grade 8 | Grade 9 |
| Introduction | 5% | 4% | 2% | 2% |
| Matter and its transformations | 15% | 20% | 29% | 31% |
| States of matter | 3% | |||
| Oxygen and air | 2% | |||
| Various materials, fuels, resources, food | 6% | |||
| Solutions; Separating substances from mixtures | 4% | |||
| Atoms. Chemical elements | 6% | |||
| Molecule | 9% | |||
| Overview of vtv5 trực tiếp bóng đá hôm nay periodic table of chemical elements | 5% | |||
| Chemical reactions | 12% | |||
| Reaction rates and catalysts | 3% | |||
| Acids - Bases - pH - Oxides - Salts; Chemical fertilizers | 14% | |||
| Metals | 8% | |||
| Fundamental differences between non-metals and metals | 4% | |||
| Introduction to organic substances Hydrocarbons and fuel sources |
7% | |||
| Ethyl alcohol, acetic acid; Lipids - Carbohydrates - Proteins - Polymers | 12% | |||
| Living organisms | 38% | 38% | 29% | 25% |
| Cells - Basic units of life | 11% | |||
| Diversity of living organisms | 27% | |||
| Metabolism and energy transformation in organisms | 23% | |||
| Response in organisms | 3% | |||
| Growth and development in organisms | 5% | |||
| Reproduction in organisms; Organism as a unified whole | 7% | |||
| Human biology | 20% | |||
| Environment; Ecosystems | 9% | |||
| Hereditary phenomena | 19% | |||
| Evolution | 6% | |||
| Energy and its transformations | 25% | 28% | 28% | 28% |
| Measurements | 7% | |||
| Force | 11% | 8% | 6% | |
| Density and pressure | 8% | |||
| Energy and life | 7% | 6% | 7% | |
| Sound | 7% | |||
| Light | 6% | 9% | ||
| Electricity | 8% | 7% | ||
| Magnetism | 7% | 5% | ||
| Earth and vtv5 trực tiếp bóng đá hôm nay sky | 7% | 0% | 2% | 4% |
| Visible movement of vtv5 trực tiếp bóng đá hôm nay Sun, Moon; Solar System; Milky Way | 7% | |||
| Biosphere and biomes on Earth | 2% | |||
| Resource extraction from vtv5 trực tiếp bóng đá hôm nay Earth's crust; Brief "Chemistry of vtv5 trực tiếp bóng đá hôm nay Earth's crust" | 4% | |||
| Periodic evaluation | 10% | 10% | 10% | 10% |
Thus, vtv5 trực tiếp bóng đá hôm nay implementation duration for vtv5 trực tiếp bóng đá hôm nay Grade 8 natural science curriculum is 140 periods and conducted over 35 weeks.
What are vtv5 trực tiếp bóng đá hôm nay materials, specimens, and chemicals used for Grade 8 natural science practice in Vietnam?
Based on vtv5 trực tiếp bóng đá hôm nay General Education Program for vtv5 trực tiếp bóng đá hôm nay subject of Natural Science issued together withThông tư 32/2018/TT-BGDĐT, vtv5 trực tiếp bóng đá hôm nay materials, specimens, and chemicals used for Grade 8 natural science practice include:
- Instruments for measuring length, area, volume, weight, temperature, time; measuring cars integrated with position sensors, force sensors to survey motion, and friction force;
- Force gauges, rulers, permanent magnet rods, spring scales; frequency generators, tuning forks, oscillographs; tools to create visible light beams, create light and dark areas, mix light colors; flat mirrors, prisms; tools to create field maps, student compasses; permanent magnets, electromagnets;
- Equipment capable of surveying vtv5 trực tiếp bóng đá hôm nay density of an object and vtv5 trực tiếp bóng đá hôm nay pressure applied to a surface; simple tools creating levers; tools to create and redistribute electric charges (van de Graaff generator, soft silk, plastic comb...); electric energy measuring kits (joulemeter);
- Kits for surveying light reflection; kits for surveying light refraction; digital scales; handheld pH meters; glassware such as test tubes, flasks, jars, beakers, funnels, basins, pipettes...; chemicals: minimum necessary chemicals for demonstration and practice experiments.
- Specimens of fertilizers; models, molecular assemblies of both hollow and solid forms of alkanes, ethyl alcohol, and acetic acid.
- Microscopic preparations of cells and cell organelles; kits for making dry preserved plant specimens and preserved animal specimens; kits for studying outdoor organisms.
- Kits for practicing bandaging for broken bones, blood pressure monitors, tools for bandaging bleeding wounds. c) Subject Room
- Room space sufficient to arrange equipment, specimens, and furniture for students to perform practice lessons, water taps and sinks, fire prevention and fighting equipment,...
- Fixed equipment: writing boards, sample cabinets, consumables (chemicals, glassware, experimental trays), chemical and experimental tool shelves, poster hangers, stone-tiled practice tables, refrigerators, drying cabinets, dehumidifiers, exhaust fans, protective equipment, tools used according to practice lessons,...
- Electronic and optical devices, audio-visual aids: microscopes, magnifying glasses, binoculars, computers, projectors, screens, TVs,...
