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## Corey from Americus, GA's Resources

PbCl2, MM = 278.10 g/mol (PbCl2 = Pb + 2 Cl). The dissolved chloride in the filtered solution was quantitatively precipitated as AgCl by the addition of excess AgNO3 solution. The solid...

Find all values of t in the interval [0,2π] that satisfy 2 cos t +1=0 1.) t=π/4, 3π/4, 5π/4 2.) t= π/3, 5π/6, 7π/6 3.) none of these 4.) t= 2π/3, 4π/3 5...

The graph of y=2sin(3x + π/4) is obtained from the graph of y=2sin(3x) by shifting 1.) to the right π/8 2.) to the left π/8 3.) to the left π/12 4.) to...

Suppose that an object is projected in such a way that its height above the ground in feet after t seconds i s given s(t)= 16t^2 +48t + 40. Find the maxium height of the object.

If I takes 4.67 times as long for a particular gas to effuse as it takes hydrogen under the same conditions, what is the molecular mass of the gas? (Note that the rate of effusion is inversely proportional...

the graph of y=2sin(3x+π/4) is obtained from the graph of y=2sin(3x) by shifting to   1.) to the left π/12 units   2.) to the right π/12 units.   3.) to...

Calculate the density of Helium, He, in grams per liter at 21 degrees C and 752 mmHg. The density of air under these conditions is 1.188 g/L. What is the difference in mass between 1 liter of air...

A vessel containing 39.5 cm3 of helium gas at 25 degrees C and 106kPa was inverted and placed in cold ethanol. As the gas contracted, ethanol was forced into the vessel to maintain the same pressure...