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2 years ago

When should lab participants look at the safety data sheet (sds) of a substance?

Chemistry

1 answer:

ratelena [41]2 years ago

6 0

When should lab participants look at the safety data sheet (sds) of a substance--- before using the substance

Which of the following will be found on a safety data sheet?

The SDS includes information such as the properties of each chemical; the physical, health, and environmental health hazards; protective measures; and safety precautions for handling, storing, and transporting the chemical.

Where can safety data sheets be found?

To obtain SDS, get them from the manufacturer. They may be sent with the chemical order (paper copy or e-mail attachment). Otherwise, go to the manufacturer's website and download it or request a copy

What is the purpose of a safety data sheet?

A Safety Data Sheet (formerly called Material Safety Data Sheet) is a detailed informational document prepared by the manufacturer or importer of a hazardous chemical. It describes the physical and chemical properties of the product

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What percentage of oxygen is attributed fossil fuel combustion

Oxana [17]

Answer:

C. 4%

Explanation:

The answer is 4%

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2 years ago

What part of the leaf is responsible for absorbing the sun’s energy?

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Answer:chlorophyll

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3 years ago

the existence of a vacancy in a crystal decreases the energy of the material i. not enough information to determine ii. false ii

enot [183]

iii. True. The existence of a vacancy in a crystal decreases the energy of the material.

One of the scientific disciplines called crystallography examines how the atoms in a solid crystal are arranged. When molecules are linked together in a regular way, these crystals are created.

The mechanical, physical, and optical properties of a material can alter when crystal flaws are present. The strength of the material can be impacted by a flaw.

An irregularity in the atoms' regular geometrical arrangement within a crystalline material is referred to as a crystal defect. These flaws are caused by the solid being deformed, cooling quickly from a high temperature, or being exposed to high-energy radiation (such as X-rays or neutrons). because the vacancy cause defects and the crystal structure is disturbed this causes a decrease in energy.

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6 0

1 year ago

Una disolución contiene 40% de ácido acético en masa. La densidad de la disolución es de 1.049 g/mL a 20°C. Calcule la masa de á

s344n2d4d5 [400]

Answer:

52.45g

Explanation:

The computation of the mass of pure acetic acid in 125mL of this solution is shown below:

The percentage of mass would be equivalent to the g of solute in each 100g of water

As we know that

density = mass ÷ volume

So,

Volume = mass ÷ density

V = 100g / 1.049 (g / ml)

V = 95.328 mL

Now In every 95,328 ml of C_2H_4O_2 there are 40g of C_2H_4O_2

i.e.

each 125ml of C_2H_4O_2 there are 52.45g

SO,

x = 40g. 125ml ÷ 95.328

x = 52.45g

4 0

3 years ago

Ammonium chloride is used as an expectorant in cough medicine. It has a density of 1.53 g/cm^3. What is the mass of 26.0L of thi

Katena32 [7]

Answer:

39.78 Kg

Explanation:

Data Given;

Density = 1.53 g/cm³

Mass = <u>??</u>

Volume = 26.0 L = 26000 cm³

Formula Used;

The measure of mass per unit volume is called as density. It is a physical property of a substance and tells how tightly the particles are packed. Mathematically;

Density = Mass ÷ Volume

Solving for Mass,

Mass = Volume × Density

Putting values,

Mass = 26000 cm³ × 1.53 g.mL⁻¹

Mass = 39780 g or 39.78 Kg

8 0

4 years ago