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2 years ago

True or false forensic technicians receive OSHA data sheets regarding toxic chemicals they deal with in their lab.

Chemistry

2 answers:

Len [333]2 years ago

6 0

Answer:

true

Explanation:

i dont have any idea regardaing this

stiks02 [169]2 years ago

4 0

Answer:

True.

Explanation:

OSHA is an institution whose main objective is to prevent workplace accidents from occurring. This institution not only sets guidelines for what measures employers should take to prevent accidents and illness from occurring, but also analyzes the environment and the work tools that are used to assess the level of safety in these things.

Forensic technicians work with tools and environments that can cause not only accidents but also illness in workers. For this reason, forensic technicians receive OSHA data sheets on toxic chemicals they deal with in their laboratory.

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When 0.270 mol of a nondissociating solute is dissolved in 410.0 mL of CS2, the solution boils at 47.52 ∘C. What is the molal bo

grandymaker [24]

Answer:

Kb = 0.428 m/°C

Explanation:

To solve this problem we need to use the boiling-point elevation formula:

Tsolution - Tpure solvent = Kb * m

Where Tsolution and Tpure solvent are the boiling point of the CS₂ solution (47.52 °C) and of pure CS₂ (46.3 °C), respectively. Kb is the constant asked by the problem, and m is the molality of the solution.

So in order to use that equation and solve for Kb, first we calculate the molality of the solution.

molality = mol solute / kg solvent

Density of CS₂ = 1.26 g/cm³

Mass of 410.0 mL of CS₂ ⇒ 410 cm³ * 1.26 g/cm³ = 516.6 g = 0.5166 kg

molality = 0.270 mol / 0.5166 kg = 0.5226 m

Now we solve for Kb:

Tsolution - Tpure solvent = Kb * m

47.52 °C - 46.3 °C = Kb * 0.5226 m

Kb = 0.428 m/°C

3 0

2 years ago

Which sentence correctly describes an aspect of the Antarctic treaty system

kirza4 [7]

The answer is C. It bans the exploitation of mineral resources

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2 years ago

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The blue color in some fireworks occurs when copper(I) chloride is heated to approximately 1500 K and emits blue light of wavele

Art [367]

Given that,

Temperature, T = 1500 K

Wavelength, $\lambda=4.5\times 10^2\ nm$

To find,

The energy of one photon of this light.

Solution,

We know that, the energy of a photon is given by the formula as follows :

$E=\dfrac{hc}{\lambda}\\\\E=\dfrac{6.63\times 10^{-34}\times 3\times 10^8}{4.5\times 10^2\times 10^{-9}}\\\\=4.42\times 10^{-19}\ J$

So, the required energy is $4.42\times 10^{-19}\ J$ .

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2 years ago

Which best describes the process of convection?

Goryan [66]

Answer:

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Explanation:

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1 year ago

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Aluminum has a density of 2.70 g/mL. Calculate the mass (in grams) of a piece of aluminum having a volume of 276 mL .

garri49 [273]

Mass = ?

Density = 2.70 g/mL

Volume = 276 mL

Therefore:

D = m / V

2.70 = m / 276

m = 2.70 x 276

m = 745.2 g

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2 years ago