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Calculate the freezing point and normal boiling point of each of the following solutions: a.25.0% by mass glycerin, C3H8O3, in water b.28.0 g of propylene glycol, C3H8O2, in 325 mL of water (d=1.00 g/cm3) c.25.0 mL of ethanol, C2H5OH (d=0.780 g/mL), in 735 g of water (d=1.00 g/cm3)
what is the broglie wavelength of an electron moving at one-tenth the speed of light. mass of the electron 9.109
If 5.00 ml of a solution containing .0400 M iron is placed in a 100.0 ml volumetric flask and filled to the mark with deionized water, what will be the concentration of iron in this new solution?
Find the moment of inertia about the x-axis of the lamina that has the given shape and density (rho). Round in the thousandths place. y = x^2, y = sqrt(x); rho(x, y) = x^2
Given that the sample is a mixture of multiple chemicals and you are NOT given a mixture of KNOWN quantities, what experiement(s) should we do to create our own KNOWN data
An aqueous solution contains 12.5% NaCl by mass. What mass of water (in grams)is contained in 2.5L of the vapor above this solution at 55 celcius? the vaor pressure of pure water at 55 celcius is 118 torr.
how many millileters of a 0.225 M HCL solution are needed to neutralize 259 mL of a 0.0309 M Ba(OH)2 solution.
Concentration of NADH was found by using beer's law using 6.22 mM cm-1 as extinction coefficient. Concentration of NADH = .0212 mM. Moles of NADH that are present in 1.02 mL sample was found by : .0212 mM x 1.02 mL = .021624 mM/mL
Please explain which of the following aqueous solutions has the strongest ion-dipole attractions: 0.3 M Na3PO4 .1 M NiF2 .2 M Rb2CO3 0.01 M Sr(OH)2 and .03 M ScBr3.
if 10.7 ml of a 0110 m naoh is required to reach the first equivalence point of a solution of citric acid how many ml
to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
A student combusts 504.96 grams of ethene gas, C2H4. How many liters of CO2 (g) are produced at a pressure of 0.993 atm and a temperature of 295 K? C2H4 (g) + 3 O2 (g) ->2 CO2 (g) + 2 H2O (g)
Hydrogen gas can produced in the laboratory through the reaction of magnesium metal with hydrochloric acid. What is the volume, in liter, of H2 gas produced at 24°C and 835 mmHG, from the reaction of 12.0 g of Mg
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