The recommended threshold limit value (TLV-ACGIH) air concentration for occupational exposure to water-insoluble hexavalent chromium Cr...

The recommended threshold limit value (TLV-ACGIH) air concentration for occupational exposure to water-insoluble hexavalent chromium Cr (VI) is 0.01 mg/m3. This concentration is based on an assumption that the individual is generally healthy and is exposed for 8 hours per day over a working lifetime (that is from age 18 to 65 years). Assuming a body weight of 78 kg and an inhalation rate of 0.63 m3/h over the working life of the individual, a. What is the lifetime (75 y) CDI? b. Estimate the low-dose cancer risk from occupational inhalation exposure to hexavalent chromium Cr(VI).

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Ally Wells answered 11 months ago

What is the equilibrium concentration of carbon dioxide in water that is in contact with air...

What is the equilibrium concentration of carbon dioxide in water that is in contact with air at 25 °C and 4.53 atm. The mole fraction of CO2 in air is 3.01×10-4. The Henry's law constant for carbon dioxide is 4.48×10-5 M/mmHg.

what is the handbook value of concentration of calcium carbonate in hot water

what is the handbook value of the concentration of calcium carbonate in hot water?

5. Distilled water in equilibrium with air contains dissolved CO2 at a concentration of 1.0x10-5 M....

5. Distilled water in equilibrium with air contains dissolved CO2 at a concentration of 1.0x10-5 M. Given that the Keq is 4.47x10-7, calculate the pH of such a solution. 6. If 100 mL of a 0.10M NaOH solution is added to 75mL of a 0.15M HCl solution, then what is the pH of the resultant solution? 7. If the pH of a patient’s blood plasma is 7.2 and the HCO3- concentration is 18 mM, then how much CO2 is dissolved...

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