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Determine the partial pressure of NO equilibrium with O2and N2 that were placed in a flask at initial pressures of 0.2 atm and 0.8, respectively?
How can estimate the empirical formula when 0.192 g of phosphorus is burned in oxygen, 0.440 g of phosphorus oxide resulted. Write down a balanced equation for the reaction of phosphorus with oxyge
If innermost part of cutting edge is 6in, from center of blade, how many radians per second should blade turn? How many revolutions per minute in this?
Determine the order of the reaction? How do you know? Determine the rate constant for the reaction? Explain.
Calculate the density of solution and the molality of methanol. In an aquatic solution of methanol (293K and 1bar) with fraction of mass 0,30 the molarity is equal with 8,911 mol/L.
The energy difference between the ground state and first excited state in a hydrogen atom is about 10 eV (eV = electron volt). The diameter of a hydrogen atom is 1°A = 10^-10 m.
Determine a particle of mass = m sitting in the ground state of a box of length = l. Suppose that one wall of the box is suddenly moved out so that the length of the box becomes length = 3l.
Suppose the triangle has sides a, b and c and that angles opposite these sides are A, B and C, respectively. If B = 90deg,sin A = 2/5 and a = 10cm, determine b and c.
Explain which among HCl, sodium hydroxide and sodium bicarbonate and solutions would you use to regenerate acetaminophen in the aqueous layer?
Discuss how much has the activation energy been reduced if a catalyst causes a reaction to precede 100 times more quickly at temperature T.
When an aqueous solution containing chloroplatinate ions was electrolyzed for 2.00 hours, the chloroplatinate ion may be represented by the formula PtCl4x-. Using a current of 0.0750 a, 0.
They evaluated that for each 25pesos increase in price, 10 fewer people will come to play. How much must tickets be?"
Angle of elevation to peak is 2,5 Degree. After driving 17 miles closer to mountain, angle of elevation is 9 degree. Determine height of the mountain?
Determine system of inequalities which explains possible number of ounces of fish and beef which can be utilized in each can to satisfy seminimum needs. Graph solution set.
The profit on the watch is provided by P = x2 - 13x -80 and where x is number of watches sold per day. How many watches were sold on the day when there was $50 loss.
If ten grams is present now, how much will be present in 100 years? In 1000 years? The fossilized leaf has 70% of its normal amount of carbon 14. How old is the fossil?
Because of head winds, average speed on returning was 15 km/h less than average speed going out. Determine the two speeds.
Its height(in ft.) after t seconds is provided by: s(t) = -16t^2 + 96t +256. Determine when is ball at its maximum height?
Consider balloon to be sphere geometrically. Determine function A(t) that explains surface area of balloon as t differs.
The cost in millions of dollars for the company to produce x thousand automobiles is provided by function C(x) = 4x^2 - 24x +81. Determine number of automobiles which should be made to minimize cost.
Though, she knows that for each 10 extra trees she plants, she will lose four apples per tree. How many trees must she have in orchard to maximize production of apples?
Two pulleys of diameters 4m and 2m are connected to the belt. Larger pulley rotates 80 times per minute. Determine speed of belt in meters per second and angular velocity of the smaller pulley.
The typical tire for the compact car is 22 inches in diameter. If car is traveling at the speed of 60mph, determine number of revolutions tire makes per minute.
If specifications need base of box to have the area of 700 sq. in., what size squares must be cut from every corner?
Find minimum electric rate in cents per kwh for which 12-year total cost (purchase price + electricity costs)will be less for 1st freezer?