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The concentration of ethanol in hard liquor is given as degrees proof, which is twice the percent ethanol by volume. What are the mole fraction and molality of C2H5OH in 70 degrees rum?
(Water is 1.00 g/mL, C2H5OH is 0.79 g/mL and 46.07 g/mol)
1. The general public often expects solutions to our environmental issues that have zero risk. Explain in less than 200 words whether this is possible, supporting your answer with a thoughtful discussion of what risk is and how to calculate risk.
weak acid in water with a Ka of 4.0x10^-4. Write the equilibrium constant expression for this acid. ( Ka)
what is the molarity of leadiinitrate solution if 50.00ml of the leadiinitrate solution is reacted with aluminum
Problem- Calculate the pH when 40.0 mL of .725 M solution of NaOH is added to 1.00 L of a solution that is 1.00M in sodium acetate and 1.00 M in acetic acid
How many moles of cobalt (Co) atoms are there in 5.00 x 10^9 (5.00 billion) Co atoms? Enter your answer in scientific notation.
A sample of air contains 78.08% nitrogen, 20.94% oxygen, 0.05% carbon dioxide, and 0.930% argon by volume. How many molecules of each gas are present in 1.00 L of the sample at 31 degrees C and 1.00 atm?
sulfuyl chloride spontaneously decomposes at high temperatures according to the equationso2cl2 g ? so2 g cl2 g the
A sample is found to contain 1.00e-5 g of salt. Express this quantity in kilograms
Enter the net ionic equation for the reaction of aqueous sodium chloride with aqueous silver nitrate.
1) What is the strongest metal? 2) The strongest alloy? 3) Which salt has the highest vaporization point? 4) Which covalent molecule has the highest vaporization point?
How many grams of dry NH4Cl need to be added to 1.60L of a 0.700M solution of ammonia NH3 to prepare a buffer solution that has a pH of 8.98 Kb for ammonia is 1.8X10^-5 Express your answer (mass of NH4Cl) numerically in grams to three significant ..
For the following elements show the allocation of electrons to their orbitals on the basis of the Pauli exclusion principle, Hund's rule, and the Aufbau principle.
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