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The absorbance at 540 nm of 1mM solution of cyanmethemoglobin is 11.0. What is the concentration of cyanmenthemoglobin solution whose absorbance in a 1mm cell is 0.690.
Based on the amounts of reagents specified in this experiment, calculate the theorectical yield of asprin (180g/mol) in terms of moles and grams.
Approximately how much water will you need to use to prepare the hot saturated? Upon cooling in an ice-bath and subsequent filtration, how much pure phthalic acid would you expect to recover? show calculations
Write the empirical formula for the molecular compound dimethoxyethane
Question- If the 8 hour Time Weighted Average exposure are determined by charcoal tube sampling to be 60ppm toluene, 20ppm methylene chloride, and 20 ppm turpentine, using OSHA's personel exposure limits, has there been an over exposure
If the chemistry of a plant is the same on a different planet as it is on earth, would it still be green in color if no light with wavelength less than 650 nm reaches the surface. Would they be this color everywhere
explain why cis-1-chloro-4-t-butylcyclohexane reacts rapidly with sodium ethoxide while the trans-isomer react slowly
Metal carbonyls having formula M(CO)x , where x is the number of carbonyl units co-ordinate to metal M are formed by Fe, Cr and Ni. If effective atomic number of each metal is 36
You have 47.0 L of 93.00 M stock solution that must be diluted to 0.500 M. How much water should you add
Consider the reaction HgS + O2 → SO2 + Hg. If 200.0 grams of HgS reacted with 150.0 grams of O2, what is the limiting reagent.
The initial temperature of the HCl and Ba(OH)2 solutions is the same at 20.48°C. For the process H+(aq) + OH-(aq) H2O(l), the heat of neutralization is -56.2 kJ/mol. What is the final temperature of the mixed solution?
How many electrons are present in the atom with its 1s,2s,2p, and 3s subshells filled with 4 electrons in the 3p subshell. what is the element
you have a stock solution of 14.8m ammonia. determine how many milliliters of this solution should you dilute to make
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