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what is the density of the block? Hint 1. How to approach the problem The apparent mass of the object in the fluid, 5.6 , is equal to its mass in air, 50.0 , minus the mass of the displaced fluid: First, determine the mass of displaced water. Second, find the volume of displaced water based on its the mass and density. The volume of displaced water is equal to the total volume of the block. Finally, use the mass of the block and the volume of the block to calculate the density. Hint 2. Calculate the mass of the displaced water The mass of the displaced fluid is equal to the mass of the object in air, 50.0 , minus the apparent mass of the object in the fluid, 5.6 : What is the mass of the displaced water?[note block is only 40% imersed in water Express your answer with the appropriate units.
No carbon atom in the structure of Y has more than one oxygen atom bonded to it, and Y can exist in two (and only two) stereoisomers forms. What are the structures of these forms of Y?
How many PopTarts® are needed to convert 1,000.0 g of water at 20.0 oC to steam at 100.0 oC? One PopTart is equal to 800,000 J of energy
A buffer solution contains 0.219 M CH3NH3Cl and 0.428 M CH3NH2 (methylamine). Determine the pH change when 0.097 mol HI is added to 1.00 L of the buffer.
The effective nuclear charge, Zeff, for a valence electron can be approximated using the "core charge" of the atom, that is, the total charge of the nucleus and the inner (non-valence) electrons.
How many molecules of acetylene (HCCH) react with 146 molecules of oxygen to produce carbon dioxide and water?
Draw all the structural isomers for the molecular formula C4H9Br. Be careful not to draw any structures by crossing one line over another; the system needs to know where you intend connections to be between atoms. I came up with 4 different struct..
The second order rate constant for a reaction is 4.2300 x 102 M-1s-1. If the initial reagent concentration is 0.93800 mol/L, determine the time (in seconds) required for the reagent concentration to reach 0.21800 mol/L.
The total molarity of acid and conjugate base = 0.100M. A boy adds 4.20 milliliters of a 0.370 M solution to the beaker. Determine how much will the pH change?
A 2.52- sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur was burned in excess to yield 4.36 of and 0.892 of as the only carbon and hydrogen containing products respectively.
calculate the volume of 0.050M Barium Hydroxide solution that contains the same number of moles
a sample of gas occupies 1.40 X 10 cubed mL at 25 degrees celcius and 760 mmHg. what volume will it occupy at the same temperature and 380 mmHg? which gas law is being used.
Given a pure sample that is known to be either pure benzoic acid or 2-naphthol, describe a procedure you might use to determine the identity of the sample, assuming spectroscopy is not available.
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