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In acid based titration, 33.65mL of an 0.148 M M HCL solution were required to neutralize 25.00 mL of a NaOH solution . What is the molarity of the NaOH solution
You are holding a compass 3.50m from a long straight electrical supply wire that is carrying a direct current perpendicularly to the local direction of the Earth's magnetic field. What is the magnit
If 15.0 mL of 4.5 M NaoH are diluted with water to a volume of 500.0 mL, what is the molarity of the resulting solution? Please include explanation, balanced equation, and calculations.
why is the experimental mole ratio of Cu/O not exactly a whoe number. Think of what may have happened to the copper during the drying period, and what effect this would have on the calculated values
What do you think the small piece of filter paper accomplishes when placed on the copper Cu
What gas do you think forms when you add sulfuric acid to the solide mixture and solution. show with an equation
Benzoic acid precipitated when the aqueous solution of sodium benzoate in beaker A was acidified. If benzoic acid failed to precipitate after acidification, how would you recover benzoic acid from b
Write a balanced equation for the acid-base reaction between benzoic acid and KOH. Using a pKa table, predict which way the equilibrium is favored.
The water in a tank is at a gauge pressure of 241,504 Pa. If the bottom of the tank that has an area of 0.2 m2
Write a balanced equation for the acid-base reaction between m-nitroaniline and HCl. Using a pKa table, predict which way the equilibrium is favored.
A plank 2.00 cm thick and 15.7 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below. find the shear modulus of t
One of the reactions (FeCl3 or NaOH) is present in a stoichiometric excess. What is the molar concentration of the excess reaction remaining in solution after Fe(OH)3 has been precipitated
Light in a transparent material (index of refraction 1.333) strikes the boundary with another transparent material (n = 1.010). compute the critical angle for total internal reflection
The ideal gas law relates the temperature, pressure and volume of an ideal gas. How many molecules of gas are inside the balloon
What is the molar composition of the vapor in equilibrium with a boiling liquid that has a composition of 60% A and 40% B
For the known values of the Earth such that RE = 6.37×106m and ME = 5.97×1024kg, find the height that the satellite is orbiting above the surface
A farsighted man uses eyeglasses with a refractive power of 3.57 diopters. Wearing the glasses 0.026 m from his eyes, What is the correct contact lens prescription
Two converging lenses (f1 = 9.00 cm and f2 = 6.00 cm) are separated by 18.0 cm. The lens on the left has the longer focal length. Locate the final image relative to the lens on the right
light ray is incident normally to the long face (the hypotenuse) of a 45° -45° -90° prism surrounded by air, Calculate the minimum index of refraction of the prism
how to choose a solvent that can be used to recrystallize a product that is less soluble than the reactant
A sample of vapor has the composition 50% A and 50% B. What is the composition of the boiling liquid that produced this vapor
Just completed the conversion of maleic acid to fumaric acid in the lab using Conc. hcl, heat and recrystallization. question: if the solubilities of the reactant and product were reversed( ie., if
What are the relative percentage of HCN and cyanide ion in a dilute aqueous solution at pH+9.2/ At pH=10.2
A vertical straight wire carrying an upward 11 A current exerts an attractive force per unit length of 8.8 multiplied by 10-4 N/m on a second parallel wire 8.0 cm away
What is the balanced equation for the complete combustion of 2,2,4-trimethylpentane? Show how butane can be converted to 2,2,4-trimethylpentane using petroleum refining processes