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Can you calculate the equivalent exposure for the following two metals using the formula and the information provided?
Em=(C1÷L1+C2÷L2)+. . .(Cn÷Ln)
Where:
Em is the equivalent exposure for the mixture.
C is the concentration of a particular contaminant.
L is the exposure limit for that substance specified in subpart Z of 29 CFR part 1910.
The value of Em shall not exceed unity (1).
Metal Fume concentration result of sampling OSHA PEL ACGIH TLV
Cadmium 0.025 mg/m³ 0.1 mg/m³ 0.01 mg/m³
Chromium 0.02 mg/m³ 1 mg/m³ 0.5 mg/m³
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 27.6 g of carbon were burned in the presence of 87.2 g of oxygen, 13.6 g of oxygen remained unreacted. What mass of carbon dioxide was produced?
Calculate the percent manganese in the sample as Mn3O4 (only part or none of the manganese may exist in this form, but we can make the calculations on the assumption that it does)
The crystal structure of lithium sulfide Li2S is pictured here. The edge length of the unit cell is 5.88*10^2pm. What is the density of Li2S in grams per cubic centimeter?
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You require 36.78 mL of 0.0105 M HCl to reach the equivalence point in the titration of 25.0 mL of aqueous ammonia. What was the concentration of NH3 in the original ammonia solution
a baseball weighs 5.19oz. what is teh kinetic energy in joules of this baseball when it is thrown by a major-league pitcher at 95 mph?
construct molecular models of threo- and erythro-2,3-dibromo-3-phenylpropanoic acid and show which diastereomer would be formed by anti addition of bromine to trans-cinnamic acid
Draw the expected trend in the melting temperatures for the lanthanides starting with La and ending with Yb. Support your conclusions by showing the DOS and bonding character plots for the element with the highest melting temperature.
a student was given 45 ml of ethanol. it has a density of o.789 gml. this amount of ethanol was placed into 969 ml of
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