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Calculate the vapor pressure of a solution prepared by dissolving 0.500 mol of a non-volatile solute in 275 g of hexane (M = 86.18 g/mol) at 49.6 degrees C. P hexane = 400.0 torr at 49.6 degrees C.
Calculate the rate constant for the decomposition of acetaldehyde from the above data. Based on the data given, what is the half-life of acetaldehyde?
Write a balanced chemical equation for the reaction.
Engineers are designing a curved section of a highway. If the radius of curvature of the curve is 181m, at what angle should the curve be banked so that a car traveling at 29.0 m/s will stay on the
Which of the following compounds is a strong electrolyte?
A catalyst has a avoid fraction of 0.40, an internal surface area of 180 m2/g and a pellet density of 1.40 g/cm3. Estimate the effective diffusivity of thiophene with hydrogen
Calculate the pH of a solution made by adding 69 g of sodium acetate, NaCH3COO, to 37 g of acetic acid, CH3COOH, and dissolving in water to make 200. mL of solution.
A banked circular highway curve is designed for traffic moving at 76 km/h. The radius of the curve is 166 m. Traffic is moving along the highway at 48 km/h on a rainy day. What is the minimum coeffi
A dockworker loading crates on a ship finds that a 17 kg crate, initially at rest on a horizontal surface, requires a 73 N horizontal force to set it in motion. However, after the crate is in motion
A hiker starts at his camp and moves the following distances while exploring his surroundings: 75.0 m north, 2.50 x 10^2 m south. (a) find his reslutant displacement from camp. (Take east as the pos
What is the acceleration of two falling sky divers (mass 119.0 kg including parachute) when the upward force of air resistance is equal to one-fourth of their weight?
Calculate the partial pressure of the hydrogen gas using the atmospheric pressure and the vapor pressure of water at the temperature of the solution. Assuming ideal gas behavior, calculate the numb
What is the chemical formula for Calcium Bromate
A mass of 0.5kg is whirled at 120 rpm in a horizontal circle at the end of a string 2 meters long. Neglecting the force due gravity, find: a) the angular velocity b) the centripetal motion
(a) How high above the ground is the highest point that the skateboarder reaches? (b) When the skateboarder reaches the highest point, how far is this point horizontally from the end of the ramp?
A car traveling 45 km/h strikes a tree. The front end of the car compresses and the driver comes to rest after traveling .80 m. What was the average acceleration of the driver during the collision?
A baseball leaves the bat with a speed of 33.5 m/s at an angle of 37° above the horizontal. A very high fence is located at a horizontal distance of 88.4 m from the point where the ball is struc
Explain how DNA tweezers can function as a simple DNA nanomachine?
Write the correct chemical Formula for Radium Sulfite
What is the complete and balanced equation of C4H10S + O2?
In which of the following species is there the greatest unequal sharing of the bonding electrons?
A car is traveling at 18 m/s when the driver spots a large pothole in the road a distance 31 m ahead. She immediately applies her brakes. If her acceleration is -6.2 m/s2, does she manage to stop be
Calculate the mass of ethylene glycol (C2H6O2) that must be added to 1.00 kg of ethanol (C2H5OH) to reduce its vapor pressure by 10.0 torr at 35 °C. The vapor pressure of pure ethanol at 35 &de
A volume of 75.0 mL of rm H_2O is initially at room temperature (22.0rm{}~^{circ}C). A chilled steel rod at 2.00rm~^{circ}C is placed in the water. If the final temperature of the system is 21.5~^{