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Alecsey [184]
3 years ago
14

The proper disposal of waste materials is covered under osha 1926.252 in

Chemistry
1 answer:
patriot [66]3 years ago
8 0
<span>1962.252(a) whenever the material is dropped from 20feet to any poiny lying outside the exterior wall of building, an enclosed chute of wood, or equivalent material. For the purpose of paragraph, an enclose chute is a slide, closed in all sides, through which material is placed from high plac eto lower one. 1962.252(b) when the disposal is dropped through holes in the floor without the use of chute, the area onto which the material is dropped shall be completely enclosed with barricades not less than 42 inch high and not less than 6 feet back from the projected edge of of the opening valve. signs warning of hazards of falling material shall be posted at each level. 1962.252(c) All scrap lumper, waste material, and rubbish shall be removed from the immediate work area as the work progresses. 1962.252(d) Disposal of waste material or debris by burning shall comply with local fire regulation 1962.252(e) All sovent waste, oily rags, and flammable liquid should be kept in fire resistant covered container until removed from work site.</span>
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the atomic masses of 63 cu (69.17 percent) and 65 cu (30.83 percent) are 62.94 and 64.93 amu, respectively. calculate the averag
docker41 [41]

Answer:

The average atomic mass of copper is 63.55 amu.

Explanation:

hope this help

7 0
2 years ago
A sample of gas occupies 3.00 L with 5.00 moles present. What would
pantera1 [17]

3/5 times 5/3x = 8*3/5. X=24/5 simplified would be x= 4.8 L.

5 0
2 years ago
If you heat a substance does it move faster or slower? Explain in terms of energy.​
katrin [286]

Heating a substance will make the molecules move faster. It creates thermal energy

7 0
3 years ago
What is the entropy change of the surroundings
KiRa [710]

Answer: The entropy change of the surroundings will be -17.7 J/K mol.

Explanation: The enthalpy of vapourization for 1 mole of acetone is 31.3 kJ/mol

Amount of Acetone given = 10.8 g

Number of moles is calculated by using the formula:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Molar mass of acetone = 58 g/mol

Number of moles = \frac{10.8}{58}=0.1862moles

If 1 mole of acetone has 32.3 kJ/mol of enthalpy, then

0.1862 moles will have = \frac{32.3}{1}\times 0.1862=5.828kJ/mol

To calculate the entropy change for the system, we use the formula:

\Delta S_{sys}=\frac{\Delta H_{vap}}{T(\text{ in K)}}

Temperature = 56.2°C = (273 + 56.2)K = 329.2K

Putting values in above equation, we get

\Delta S_{sys}=\frac{5.828}{329.2}=0.0177kJ/Kmol=17.7J/Kmol   (Conversion Factor: 1 kJ = 1000J)

At Boiling point, the liquid phase and gaseous phase of acetone are in equilibrium. Hence,

\Delta S_{system}+\Delta S_{surrounding}=0

\Delta S_{surrouding}=-\Delta S_{system}=-17.7J/Kmol

5 0
3 years ago
Atomic weight of lithium ?
LuckyWell [14K]

Answer:

6.941

Explanation:

5 0
3 years ago
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