How many kilojoules of heat will be evolved
How many kilojoules of heat will be evolved during the combustion of 16.0g of C6H6 (l)? The value of Δ H rxn for the following reaction is -6535kJ.
2C6H6 (l) + 15 O2 (g) →12CO2 (g) +6H2O (g)
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A standard deck of playing cards has the total of 52 cards. 4 out of these cards are kings, 4 cards are queens, 4 cards are jacks and 4 cards are aces. Determine the chances of drawing a single jack from the deck of cards? Express your answer in t
A mass moves backward and forward in simple harmonic motion having amplitude A and period T. (i) In terms of A, via what distance does the mass move in the time T?
A practical joker adds table salt (NaCl) to a sugar (C12H22O11) container that originally held 5kg of sugar. A chemist wishes to prepare a 1.5 molal solution of sucrose in water.
A cylindrical storage tank consists of a radius of 1.43 m. When filled to a height of around 3.46 m, it holds 15100 kg of a liquid industrial solvent. Determine the density of the solvent?
Because their rims are coated with instant-acting glue, the pucks stick altogether and rotate after the collision. Determine the angular speed about the center of mass?
Evaluate the boiling point of an aqueous solution of anon electrolyte that has an osmotic pressure of 10.50 atm at 25C? Kb of water is 0.52C/m. Assume its density is the same as pure water.
If two variables show the positive linear relationship in a scatter diagram:
X rays having a wavelength of 0.19 nanometers experience first-order diffraction from a crystal at a 74 degree angle of incidence. Determine the angle (in degrees) of second-order diffraction?
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