Explain concept behind vsepr theory of molecular shape
Explain the main concept behind the VSEPR theory of molecular shape. How do both number and type of electron pairs influence the shape of a molecule?
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A gate of 10 ft width and 5 ft long is hinged at point A and held in place by 12 ft long brace as shown in fig. As the bottom of the brace is moved to the right, the water level remains at the top of the gate.
How many grams of water can be cooled from 34°C to 26°C by the evaporation of 81 g of water? (The heat of vaporization of water in this temperature range is 2.4 kJ/g. The specific heat of water is 4.18 J/g·K.)
how much fuel should he carry? (For the sake of simplicity, assume that the transfer of heat is 100% efficient.)
A single-turn square loop of wire, 2.00 cm on each edge, carries a clockwise current of 0.200 A. The loop is inside a solenoid, with the plane of the loop perpendicular to the magnetic field of the solenoid.The solenoid has 30 turns/cm and carries
A point electric charge of 8Nc in kept at a distance of 1m from another point charge of -4Nc in free space. determine the location of a point along the line joining two charges where in the eletric field intensisty in zero
At a particular temperature and [A]0 = 2.00 x 10-2 concentration versus time data were collected for this reaction. Calculate the half-life for this reaction.
Calculate the pH of a solution made by adding 18 g of sodium acetate, NaCH3COO, to 20. g of acetic acid, CH3COOH, and dissolving in water to make 100. mL of solution.
Find the mass of sodium required to profuce 5.68 L of hydrogen gas at STP from the reaction described bu the following equation: 2Na + 2H2O → 2NaOH + H2.
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