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1.1025g of dried carrots were extracted in HNO3. The extract was filtered and placed in a 50.00ml volumetric flask which was filled to the mark. 5.00ml of the solution was transferred to a second 50.00ml volumetric flask. The diluted solution from the second volumetric flask was found to contain 0.0274 mgNa/L.What is the concentration of Na in the first volumetric flask? What is the %Na in dried carrots?
Draw the acid/base balanced reaction when 4-methylphenol is reacted with 50% potassium hydroxide solution
What is the effect of raising the temperature or increasing the carrier gas flow rate on the ability to resolve two closely
how many ml of water at 23degrees celsius with a density of 1.00gml must be mixed with 180mlabout 6oz of coffee at 95
draw the valid lewis structures of polyatomic ions in bro4-. determine the number of resonance forms for each structure
What is the molar solubility of AgCl in water. For AgCl, Ksp=1.8 x 10-10. Give your answer in moles per litre, accurate to two significant figures
how does the hammond postulate explaina. the greater selectivity for bromination vs. chlorination of an alkane?b. the
A sample of nitrogen gas had a volume of 500. mL, a pressure in its closed container of 740.0 torr and a temperature of 25.0°C.
A 2.154-g sample of HgO produces 125 mL of oxygen collected over water at 24 degrees C and an atmospheric pressure of 763 mm Hg. Calculate the STP molar volume for oxygen.
a solution was prepared by mixing 50.00 ml of 0.190 m hno3 and 124.00 ml of 0.150 m hno3. calculate the molarity of the
A 13 gram sample of calcium reacts with bromine to form 24 grams of calcium bromide. How many grams of bromine are used in the reaction?
Which of the following is a buffer?
50.0 mL of 2.00 M H2SO4 react with 75.0 mL of 2.00M NaOH. Identify the limiting and excess reactants. How many grams of Na2SO4 will be formed.
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