In: Chemistry
A mixture of 0.10 mol of NO, 0.050 mol of H2, and 0.10 mol of H2O is placed in a 1.0-L vessel at 300 K. The following equilibrium is established: 2NO(g)+2H2(g)←−→N2(g)+2H2O(g) At equilibrium [NO]=0.062M. Calculate the equilibrium concentration of H2. Calculate the equilibrium concentration of N2. Calculate the equilibrium concentration of H2O. Calculate Kc
In: Chemistry
A 2.0 kg glider moves in the +x direction at constant speed 2.0 m/s on a frictionless horizontal air-track. The second glider of mass 1.0 kg moves in the –x-direction at a constant speed of 2.0 m/s on the same air track towards the first glider. What is the speed of the center of mass of the two gliders right after the collision?
In: Physics
Assuming 100% yield, how much hexynyl lithium is produced from the reaction that you performed in the lab of LiMDS with 1-hexyne (0.22 mL)? Using 1 mL of 1.0 M lithium bis(trimethylsilyl)amide solution in THF and 0.22 mL of 1-hexyne. (1‐hexyne density = 0.71 g/mL).Show all work .
In: Chemistry
A scientist measuring the resistivity of a new metal alloy left her ammeter in another lab, but she does have a magnetic field probe. So she creates a 7.5-m-long, 4.0-mm-diameter wire of the material, connects it to a 1.5 V battery, and measures a 5.0 mT magnetic field 1.0 mm from the surface of the wire.
In: Physics
The specific rotation, [α]D, for (-)-2-butanol is +14. What is the observed rotation for a solution of 1.0 g of (-)-2-butanol in 10 mL of water in a sample tube having a pathlength of 10 cm? ??????degrees .
The observed rotation of a solution of 1.5 g of a compound in 10 mL of water is +3.4 degrees. If the pathlength is 10 cm, what is the specific rotation of the compound? .
In: Chemistry
You receive 7500 frames from your supplier every week. You sample to General Inspection Level II and use AQL = 1.0 This supplier has been very good and you have accepted all of the last ten lots. As a result, you are on reduced inspection What is your sampling plan for the next delivery? n = c =
In: Statistics and Probability
A 1.0 oz (30.0 mL, 1.00 g/mL) espresso contains 55.0 mg of caffeine (C8H10N4O2). Calculate the caffeine concentration in the following units. You may assume your espresso contains only caffeine and water for simplicity.
a. ppm
b. %w/w
c. ppb
d. Molarity
e. molality
f. Xcaffeine (mole fraction)
In: Chemistry
In: Finance
In a population survey of patients in a rehabilitation hospital, the mean length of stay in the hospital was 12.0 weeks with a standard deviation equal to 1.0 week. The distribution was normally distributed. What is the percentile rank for each of the following z scores? Enter the percentile rank to the right of each z score. Assume a normal distribution.
a) 1.23 _____
b) 0.89 ______
c) -0.46 _____
d) -1.00 ______
In: Math