Decision management
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A generic vinegar, 4.5 % acetic acid, costs 95 cents for an 8 oz bottle and $ 2.79 for a quart bottle. which is cheaper? Calculate the cost of each bottle in $/g acetic acid.
A 48-g sample of a gaseous fuel mixture contains 0.57 mole fraction propane,C3H8; the remainder of the mixture is butane,C4H10. What are the masses of propane and butane in the sample?
Vanillin, C8H8O3, occurs naturallyin vanilla extract and is used as a flavoring agent. A 42.5-mg sample of vanillin was dissolved in181.5 mg of diphenyl ether,(C6H5)2O. What is the molality of vanillin in the solution?
A certain element has two isotopes with Abundance and Mass as 73%, 99 amu, and 27%, 118 amu. How do you find the atomic weight of the element in amu?
Decision management, Please include references etc..........................................................................
The ionization constant Ka of the indicator chlorophenol redis 1.0x10^-6. The color of the nonionized form of the indicator(HIn) is yellow and that pf the ionized form (In-) is red. What is the color of the indicator in a solution whose pH is 8.oo
If the temperature rise of the calorimeter with water was .570 degrees C, calculate the enthalpy of combustion of magnesium. Mg+1/2 O2 produces MgO
What is the osmotic pressure of a solution prepared from 13.7g of the electrolyte HCl and enough water to make 0.500L of solution at 18 degrees C?
Consider a Zn(s) strip and/vs a Cu(s) strip in separate beakers of water. Which of these metals has its reducing strength increased to the greater extent by treatment with 1 M H2S?
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