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A fuel gas containing 75% methane, 15% ethane and 10% propane by volume flows to a furnace at a rate of 1200m^3/hr at 15'C and 200kPa, where it is burned with 12% excess air. Calculate the required
A 100 g bullet is shot into a 1 kg sphere of wood, where it sticks. What is maximum initial speed the projectile can have
(1) Consider the following pairs of substances. Think about the physical behavior of these substances if each pair were placed together in a separate container. Explain what would occur for each set
What is the pressure in atmospheres inside a container of gas connected to a mercury-filled open-end manometer when the level in the arm connected to the container is 28.0cm higher than the level in
A rubber ball of mass 39.0 g is dropped from a height of 1.80 m onto a floor. find impulse was applied to the ball during the collision
What is the density (in grams per liter) of a gas mixture that contains 20.5% F2 and 79.5% He by volume at 793mm Hg and 28.5C
Provide a Lewis structure, including resonance if appropriate, and non zero formal charge, for ICl2-
Indicate the pH at (a) the beginning of the titration (0.0 mL titrant) and after the addition of (b) 12.5 mL, (c) 24.0 mL, (d) 24.9 mL, (e) 25.0 mL, (f) 25.1 mL, and (g) 30.0 mL of the titrant. Labe
A mass m = 14 kg is pulled along a horizontal floor, with a coefficient of kinetic friction ?k = 0.09, for a distance d = 7.9 m. What is the work done by tension before the block gets to the incline
The mole fraction of O2 in the air is 0.2094, and the mole fraction of N2 is 0.7809. Calculate the density of air at 25 degree celcius and the pressure is 1.00 atm.
A car of mass 1.00×103kg and a truck of mass 4.10×103kg run into one another due to ice on the road. Calculate the size of the force on the car due to the truck at that time
A heater burns propane (C3H8) using 30.0% excess air. Combustion is complete. The flue gas leaves at a pressure of 100 kPa and a temperature of 260°C. a. Calculate the flue gas composition
You would like to store 8.6J of energy in the magnetic field of a solenoid. What is the magnitude of the magnetic field inside the solenoid
A second 25.0 mL aliquot of the original solution was mixed with 20.0 mL of 50 ppm quinine solution before dilution to 100 mL. The fluorescence intensity of this solution was 425. Calculate the perc
A circular solenoid contains 100 turns of wire and carries a current of 2 amps. Calculate the magnetic flux through one turn of the wire making the solenoid
A 20-kg block and a 10-kg ball are hung from the ceiling through a pulley as shown below, calculate the acceleration of the ball and the block
Water, sodium hydroxide, and 1,6-hexanediamine are all potential nucleophiles. Yet, only 1,6-hexanediamine reacts with the adipoyl chloride. Offer an explanation as to why.
A straight wire segment 2 m long makes an angle of 30° with a uniform magnetic field of 0.37 T. Find the magnitude of the force on the wire
A 391 mL of sample of HClO4 has pH of 0.2439. If 619 mL of distilled water was added to the HClO4 solution, what would the new pH be
A block of mass 2.50 kg is pushed 3.00 m along a frictionless horizontal table by a constant 10.0 N force directed 25.0° below the horizontal. Determine the work done by the normal force exerted
1. The Vmax determined from a Lineweaver-Burk plot corresponds to what function of the slope and y intercept. 2. The Km determined from a Lineweaver-Burk plot corresponds to what function of the slo
A 400 N stun pilot who has been driving his fighter plane vertically pulls out of the dive by changing her course to a circle in a vertical plane. what is the apparent weight of the pilot at the low
1. In a Lineweaver-Burk plot of 1/v versus 1/[S} what are the units for the slope. 2. In a Lineweaver-Burk plot of 1/v versus 1/[S} what are the units for the y intercept
An 80 N box initially at rest is pulled by a horizontal rope on a horizontal table. Find the friction force on the box if the pull is 25 N and the box remains at rest
1. In a plot of absorbance verus time, what are the units for the slope 2. Assuming a pathlength of 1 cm