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The reaction H2 + O2 + N2 ? NO + HNO + H is shown to have the following rate behavior: Rate (M/s) [H2] (M) [O2] (M) [N2] (M) 0.0028 0.2 0.4 0.2 0.0028 0.4 0.4 0.2 0.0056 0.4 0.4 0.4 0.0056 0.4 0.8 0
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.50 104 m/s, and the radius of the orbit is 5.45 106 m. What is the orbital speed of the second satellite
A second-order reaction A?B begins at noon with [A] = 0.1 M. If the rate constant k = 0.033 M-1 s-1, at what wall clock time will [A] = 0.01 M
A 2.40 kg object rotates around along a horizontal circle of radius r=0.720m. Obtain the centripetal acceleration and centripetal force
A block of wood has a density of 0.55g/cm^3 and mass of 2,500 g. it floats in a container of oil (the oil%u2019s density is 0.85 g/cm^3). What volume of oil does the wood displace
What is the pH of a solution created by dissolving 15.0 g of monosodium phosphate NaH2PO4 and 12.0 g of disodium hydrogen phosphate Na2HPO4. The Ka is 6.2*10^-8. How much .2 M NAOH is needed to rais
a block of wood has specific gravity 0.79. When placed in water, what percent of the volume of the wood is under the surface. And what volume of the wood is above the surface
What m/z value would you predict for the most stable fragment peak in the mass spectrum of 4-ethylheptane ? a- 85 b-128 c-99 d-113 e- 127
Lactase, an enzyme found in the small intestine, cleaves the milk sugar lactose to yield glucose and galactose. Assuming that the km for lactose is 0.9mM, vmax is 3.5 micromole/min/mg lactase, 5.7 m
How do you determine number of rings, double bonds, or triple bonds from degrees of unsaturation. For example a substance C8H8 has 5° degrees of unsaturation, so determine the number of rings an
Two forces, F1 and F2 act at a point. F1 has a magnitude of 8.80N and is directed at an angle of 62 degrees above the negative X axis in the second quadrant. What is the magnitude of the resultant f
The sample of 19.2g of KCl is dissolved into a solution with a total volume of 242.0 mL. what is the molarity of the solution
What is the stoichiometric coeffiecient for oxygen gas when the following reaction is balanced using the smallest whole number coefficients? C12H26(g) + O2(g) --> CO2(g) + H2O(g)
How many unpaired electrons would (Re(CN)6)-3 and (MnCl6)-4 have give electron configurations for each ion in terms of the t2g and eg sets.
A loaded railroad car of mass 6000 kg is rolling to the right at 2.0 m/s when it collides and couples with an empty freight car of mass 3000 kg, What is the velocity of the pair after the collision
Trans-bis(ethylenediamine)dithiocyanatocopper(II) forms three linkage isomers. write each structural formulas and name each isomer.
Let's say you measure an average acceleration to be 0.4045 ms-2. What is the height (in centimeters) of the riser block
A sample of magnesium wieghs 26.1 mg. How many moles of magnesium are there in the sample? Calculate the mass of one mole of the ionic compound that forms from strontium an dbromine.
Consider the reaction. N2(g) + O2(g) --> 2NO(g) How many moles of NO are obtained when 0.029 mol of N2 is completely reacted
A 2.3A current is flowing in a 25H inductor. A switch is opened, interrupting the current in 1.0ms. Find the induced emf in the inductor
A stone is thrown horizontally from the top of a 15m building. The stone hits the ground at a point 24m from the base of the tower. Determine the speed of the stone just before it hits the ground
A 10.0-m long string is moved up and down with simple harmonic motion with a frequency of 33 Hz. Determine the velocity of the wave on the sting
An artificial satellite circling the Earth completes each orbit in 142 minutes. Find the altitude of the satellite
A metal rod (2.4 kg, 1.5 m long) is rotating about an axis through its center at 20.0 rad/s. Calculate its rotational kinetic energy
Florine is so reactive that it forms compound with material insert to other treatment when 0.448gm of plantinum is heated in florine, 0.71gm of dark red, volatile solid forms. What is emperical form