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At 26.0 degree C exactly the 11.2 mL of water are added to a hot iron skillet. At 100degree C all of the water is converted into the steam. The molar heat capacity of iron is 25.19 J/(mol. degree C)
A solution of a dye was calculated by the spectrophotometers, and the following calibration data were collected:
The emission spectrum below for a one-electron species in the gas phase shows all the lines, before they merge together, resulting from transitions to the first excited state from higher energy stat
There is point on edge of this pipe which is both 5 in. from ground and 10 in. from wall. Determine two possibilities for radius of pipe.
A gaseous carbon and hydrogen containing compound is decomposed and found to contain the 14.37% H and 85.63% C by mass. The mass of 258 mL of the gas, calculated at STP, was found to be 0.646 g. How
A solid metal which is having 25g with a specific heat of .090j/gK is heated to 65 deg C. and dropped into the water whose temperature is 22 deg C. After allowing the temperature to stabilize, desc
The top of the 140-foot vertical tower is to be anchored by cables which make the angle of 61° with ground. How long should the cables be?
A block of copper which is having the mass 500 g and initially at 293 K is in the thermal contact with an electric heater with resistance 1.0 kΩ and negligible mass.
A solution which is having 1.00 L of 0.450 M oxalic acid solution is condensed by the evaporation to 665.0 ml. Calculate the new molarity of this solution?
Determine the melting point of ice under a pressure of 50 bar. Suppose that the density of ice under these conditions is approximately 0.92 g cm-3 and that which is having the liquid water 1.00
The complete combustion of 1.608 g of cymene in a bomb calorimeter where Calorimeter = 3.640 kJ/degree C formed an increase in temperature of 19.35 degree C.
Write down and and balance a chemical equation-Decomposition Reaction and add Hydrogen Peroxide Solution into a test tube and then add some Manganese (IV) oxide-which is acting as a catalyst for a
A sample of ammonia gas is totally decomposed to hydrogen and nitrogen gases over heated iron wool. Analyze the partial pressure of hydrogen and nitrogen gas when the total pressure is 866mmHg.
Calculate this probability density for an electron in the 1s-, 2s-, and 3s- orbital of a hydrogenic atom. When an orbital other than s is considered then what happens to the probability density?
Determine the numbers of grams of sodium hydrogen carbonate, baking soda, are needed to totally neutralize 1.00L of 6.00 M sulfuric acid that has been spilled on the floor?
Determine coordinates of vertices of major axis? Find coordinates of vertices of minor axis? Find coordinates of one Foci? Determine the Eccentricity? 16x^2+25y^2=150y+175.
At normal atmospheric pressure a mixture of water and aniline is steam distilled, initially the temperature is 97.3C. At this temperature the partial pressure of water is 745mm Hg. Calculate
Express the following: (i)Coordinates of vertices of major axis and coordinates of vertices of minor axis. (ii) State Coordinates of one Foci and state Eccentricity. 16x^2+25y^2=150y+175.
The 30-foot ladder is leaning up against the roof which is 20 feet above ground. How far from building is foot of ladder? Determine angle between ladder and ground?
Assume that graph of F is given. Explain how graph of 4f ( 5x - 2 ) + 3 can be attained from graph of F. Be very descriptive.
Let x represent number of weeks from now that manager must wait to have peaches picked. Write the expression which represents selling price per pound and yield per tree.
Suppose demand is linear, create the demand equation for milk. Demand equation is q=-1500p+5550. Find revenue function R as the function of selling price p.
Height y (in feet) of the ball thrown by the child is: y= (-(1/12)x^2)+2x+4 where x is horizontal distance (in feet) from point at which ball is thrown. How far is ball when it leaves child's hand.
Consider f(x) = -7x^2 - 6x + 1. Bring it to strad form of parabola f(x) = a(x-h)^2 + k by completing square in x and determine its vertex, x- and y-intercepts and axis of symmetry.
The appliance manufacturer evaluates that profit y (in dollars) made by producing x cooktops per month is given by equation. How many cooktops should be produced to start generating the profit?