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Problem- The molar absorptivity for a certain compound is 20 L/mol * cm. If you are using a colorimeter with a path length of 1.00 cm, and a detection range of 0.100 AU ---> 100.0 AU, calculate a range of five concentrations of the compound that could be measured in your colorimeter to generate a standard absorbance curve.
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How many moles of oxygen are generated during the thermal decomposition of 7.75 g of lead (IV) oxide
Question- Antimony (V) chloride, SbCl5, dissociates on heating to give antimony (III) chloride, SbCl3 and Chlorine. SbCl5 (g) SbCl3 (g) + Cl2 (g), A closed 3.50 L vessel initially contains .0125 mol SbCl5. What is the total pressure at 248 degree..
Calculate the pH of an HCl solution if 16.5 mL of this HCl solution is titrated with a 0.454 M NaOH and it took 5.65 mL of the NaOH to reach the equivalnce point.
find the chemical formula and the chemical name for the compounds formed between the following atoms 2.oxygen and
In running column chromatography under the following conditions, you get results that are less than ideal. Consider the situation in each case and suggest a correction.
Presuming complete dissolution of NaCl, explain how much NaCl (in g) must be added per liter of wastewater to make sure that the soluble silver concentration is less than or equal to 1 µg/L? Presume low pH so you can ignore any complexion of silve..
Calculate the heat of combustion of cyclohexatriene using the bond energies for C=C,C-C, and CH provided below. The actual value measured experimentally is 3331.2 KJ/mol
Given that the most common mineral in limestone is calcium carbonate, describe how these limestone objects are corroded by the sulfuric acid in polluted air. What chemical reaction is involved here?
When 1.0 g of gasoline burns, 11500 calories of energy are given off. If the density of gasoline is 0.74 g/mL, how many kilocalories of energy are obtained from 1.1 gallons of gasoline?
A solution of 116 mL of 0.170 M KOH is mixed with a solution of 230 mL of 0.240 M NiSO4. What precipitate forms?
ond weighs 44.0 carats. Determine the volume occupied by the diamond, given that its density is 3.5 g/cm3 at 20°C, and that 1 carat = 0.200 g.
A gaseous mixture of O2 and N2 contains 38.8 % nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 405 mmHg
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