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A solution of NaOH(aq) contains 8.0 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25 °C. pH=? pOH=?
if a 1.00 g piece of gold (density = 19.32 g/cm^3) is hammered into a sheet 8.0 x 5.0 ft what is the average thickness of the sheet in meters?
A 2.89 g sample of solid calcium carbide (CaC2) reacted with water to produce acetylene gas (C2H2) and aqueous calcium hydroxide.
2 FeBr3(aq) + 3 Na2CO3(aq) Fe2(CO3)3(s) + 6 NaBr(aq) what is the net ionic eqation for this molecular equation.
Which of the following buffers will have the lowest pH?
If a fresh golden delicious apple weighing 4.30 (120 ) contains 17.0 of fructose, what caloric content does the fructose contribute to the apple?
If the heated copper is then placed into the water in the insulated container, given that the specific heat of copper is 0.385J/(gC), calculate the maximum temperature of the water after the copper metal is added.
What scientific principle or law is used in the process of balancing chemical equations. Define the terms limiting reactant and excess reactant.
Consider the dissociation reaction given above taking place in a reaction vessel. This dissociation reaction starts with n0 moles of A2. At equilibrium we have nA moles of the product A. The pressure at equilibrium is P and the temperature is T.
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution
What is the molarity of a sodium chloride solution, if 6.62 g of NaCl are dissolved in enough water to make
A 28.0-g sample of water at 250. K is mixed with 47.0 g water at 300. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
It takes 245 kJ/mol to eject electrons from a certain metal surface. What is the longest wavelength of light (nm) that can be used to eject electrons from the surface of this metal via the photoelectric effect?
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