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At 20oC the solubility of barium hydroxide in water is1.85g/100g water and the solution is made up in 35.0g of water of 256mg. Explain, Is the solution saturated? If not, determine the number of ba
Determine values of trigonometric functions of angle (in standard position) whose terminal side passes through given point. Coordinates are approximate. (37.71,21.86)
Determine the binding energy of the nucleus of56Fe, given that the proton mass = 1.00728 amu, the isotopic mass is 55.92068 amu and the neutron mass= 1.00866 amu. Answer in joules to two sig figs.
To create the same antifreeze protection as 3.00 gallons of ethylene glycol, determine the volume of propylene glycol in gallons.
The CCL3F and CCl2F2 have been linked to ozone depletion in the Antarctica. As of 1994 these gases were found in quantities of 261 and 509 parts per trillion by volume.
Determine excact value of expression cos (a+B), sin (a+B) and tan (a+B) under the given conditions. cos (a) = 15/17, a lies in quadrant IV, and sin (B) = -6/13, B lies in quadrant III.
Compute amplitude, perod and displacement of given function. y = 2 cos (x - pi/6). Find amplitude, perod and displacement of given function. y = -5 cos (2x - pi/2)
Draw graph of the following. Define period and midline 1) y= 3sin 2t 2) y= -cos1/2 t. Compute coordinates of point at given angle on the circle with radius 3.8 centered at origin. a) 45°
Determine the formula for Cos(4theta) in terms of Cos{Theta}. Suppose that V is in interval (-pi/2, 0)...Tan V=-1/12 find sin(2V)
Write down equation in standard form of conic with given characteristics. parabola: vertex (3,-3) and focus (3, -9/4) ellipse: center (2,-1), vertex (2, 1/2), length of minor axis: 2.
The initial invesment of $14000 is appreciated for 5 years in the account which earns 14% interest, compounded semiannually. Determine amount of money in account at the end of the period.
There is linear relationship between number of units, N(x), of the product which the company sells and amount of money, x, spent on advertising. Write interpretations of slope and x- and y- intercep
Determine the function which gives amount of bacteria in grams after t days. (Use variable a to represent initial amount.)
The parallelogram has two sides of length 6, two sides of length 11, and two angles of 44 degrees. Determine angle between shorter diagonal of paralelogram and the side with length 6.
Utilize formula to fill in missing values of k (convert to % per year), relative exponential rate of growth between each pair of years.
Sketch the line connecting points (-1,f(-1)) and (0,f(0)). Determine the slope of the secant line? Compute the slope called?
Determine the number of grams of solution and how many grams of H2SO4 are in 1.00L of concentrated acid? Describe the molarity of concentrated H2SO4?
The density of 40.00%urea solution is 1.1083 g/mL at some other temperature. Determine the molality and molarity of the solution at this temperature.
At a temperature of 15°C a bicycle tire is filled with air to a pressure of 70 Psi. Riding the bike on blacktop on a hot day enhances the temperature of the tire to 58°C.
Graph of y=log0.5x is plotted. by inspecting graph and noting properties of log0.5x, explain some of differences of logarithms to the base less than 1 from those to base greater than 1.
A student collected hydrogen gas by displacing water at 26.0 Celsius in a buret. To equalize the pressure the buret could not be submerged deep enough in a water bath.
Calculate the half-life of a compound if 75 percent of a given sample of the compound decomposes in 60 minutes?
Determine the mass of a piece of magnesium which formed the 29.1ml of hydrogen gas which is collected over the water at pressure of 749 torr and at 22.5 Celsius when dissolved in excess hydrochloric
Creae the table of values comprising atleast 4 ordered pairs and then draw graph of the function f(x)=2^x. Define domain and range of f.
Determine the value of c, the distance among two successive planes in the HCP lattice (two "A" planes in the ABABA... sequence of close packed planes). Explain that c/a (where a is the distance amo