Question
In: Mechanical Engineering
1. What would be the maximum concentration of Toluene (PEL 200 ppm) that an atmosphere could...
1. What would be the maximum concentration of Toluene (PEL 200 ppm) that an atmosphere could contain if your air purifying respirator has been tested with the following results: mask concentration of nontoxic gas 10 ppm.
2. A respirator cartridge that has an orange stripe on a black label would indicate use in what situation?
please type answer. some are written on paper and are hard to read
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Solutions
samet mamat answered 2 years agoRelated Solutions
The concentration of toluene at the stack is 100 ppm and the polluted air is emitted...
The concentration of toluene at the stack is 100 ppm
and the polluted air is emitted at 100 m3/minute. The density of
toluene is about 0.9 g/mL. Pressure=1atm and
temperature = 298K The stack height is 100m. The plume rise is 30
m. Estimate the down wind, centerline, ground-level concentration,
at a down wind distance of 5000 meters from the stack. The
atmospheric stability is class D, and the wind speed at a stack
height is 5.0 m/s. ANSWER 0.54...
The maximum amount of CO2 that could be absorbed in water at 1 atmosphere at room...
The maximum amount of CO2 that could be absorbed in water at 1
atmosphere at room temperature (25 ͦ C). (ideall where on a phase
diagram of CO2)
1. What is the chemical shift (in ppm) for a 460 Hz signal in a 200...
1. What is the chemical shift (in ppm) for a 460 Hz signal in a
200 MHz NMR?
2. Explain why rearrangements sometimes occur in addition
reactions of HBr to alkenes.
Create an "IPCC-like" stabilization scenario using the following simplified information. Starting in the year 2004, the concentration of CO2 in the atmosphere is 378 ppm,
Create an "IPCC-like" stabilization scenario using the following simplified information. Starting in the year 2004, the concentration of CO2 in the atmosphere is 378 ppm, the global emissions of CO2 are 7.4 Gt carbon per year, the total carbon in the atmosphere is 767 Gt, and emissions are growing by 4% per year, for example, in 2005 emissions reach 7.7 Gt, 8.0 Gt in 2006, and so on. Note that concentration is given in terms of CO2, but emissions and...
a) The water in a lake is found to have a toluene concentration of 1 µg/L....
a) The water in a lake is found to have a toluene concentration
of 1 µg/L. Calculate the concentration at equilibrium in the air
above the lake (µg/L) and the sediment in the lake (µg/kg). Assume
that the sediment has an organic carbon fraction of 0.05.
b) Perform the same calculation for a phenanthrene concentration
in water of 1 µg/L.
c) For each chemical, comment on whether you would be more
concerned about its release to the air or sediment....
Predict what the temperature anomaly would be at a CO2 level of 450 ppm CO2 (ppm)...
Predict what the temperature anomaly would be at a
CO2 level of 450 ppm
CO2 (ppm)
Temp Anomaly (deg. C)
335.40
0.2
336.84
0.34
338.75
0.43
340.11
0.14
341.45
0.39
343.05
0.21
344.65
0.2
346.12
0.25
347.42
0.41
349.19
0.52
351.57
0.38
353.12
0.53
354.39
0.53
355.61
0.24
356.45
0.28
357.10
0.39
358.83
0.57
360.82
0.49
362.61
0.55
363.73
0.85
366.70
0.6
368.38
0.58
369.55
0.68
371.14
0.8
373.28
0.78
375.80
0.69
377.52
0.88
379.80
0.78
381.90
0.86
383.79
0.65...
Predict what the temperature anomaly would be at a CO2 level of 450 ppm CO2 (ppm)...
Predict what the temperature anomaly would be at a
CO2 level of 450 ppm
CO2 (ppm)
Temp Anomaly (deg. C)
335.40
0.2
336.84
0.34
338.75
0.43
340.11
0.14
341.45
0.39
343.05
0.21
344.65
0.2
346.12
0.25
347.42
0.41
349.19
0.52
351.57
0.38
353.12
0.53
354.39
0.53
355.61
0.24
356.45
0.28
357.10
0.39
358.83
0.57
360.82
0.49
362.61
0.55
363.73
0.85
366.70
0.6
368.38
0.58
369.55
0.68
371.14
0.8
373.28
0.78
375.80
0.69
377.52
0.88
379.80
0.78
381.90
0.86
383.79
0.65...
1. In an unsaturated solution, what is the maximum concentration of Pb2+, if we managed to...
1. In an unsaturated solution, what is the maximum concentration
of Pb2+, if we managed to fixed the I- concentration to 1 x
10-3M?
Pbl2->Pb2+ + 2I- Ksp=7.9 x 10-9
2. 100mL Of 5mM CoCl2 reacted with 100mL of 4mL K2CO3 to form
CoCO3 and KCl. 1) Identify the ions and precipitates present in the
solution and 2) what concentration will you observe precipitates
forming? 3) What is the concentration of the ions in solution,
accounting for activity, assuming rCo2+...
In a high jump competition: What would be the maximum height an athlete could jump using...
In a high jump competition: What would be the maximum height an
athlete could jump using a pole? Find out what the world record is
and compare with its result. Does your reasoning allow you to
understand why a good pole vaulter has to be a very fast runner?
Can your method be applied to estimate maximum height in a pole
vault high jump competition? Why can you jump higher with the pole
than without it? The figure shows the...
What is the concentration of Ca2+ in ppm (mg/L) in cave water saturated with calcite (calcium...
What is the concentration of Ca2+ in ppm (mg/L) in cave water
saturated with calcite (calcium carbonate, Ksp = 4.7 × 10-9)?
Answer:2.7
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