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How would you prepare 25.0mL of 2.0M sodium phosphate from solid sodium phosphate. (Na3PO4)
The concentration of Fe for the twice diluted sample is found to be about 1.875ppm. What is the concentration of Fe in the original sample of tap water
Calculate the molar mass of the earth's atmosphere at an altitude of 500 km where the pressure is 1.6 x 10-11 bar, the temperature is, on average, 1580K and the density is 2.2 x 10-12 g/L
If a buffer is made up to be 1.0M in acetic acid and 1.0 M in sodium acetate, predict how much acid will be required to change the pH of 100mL of the buffer by 0.1 pH units.
Using library resources determine if it is possible to construct a single cell battery that has a cell potential of at least 9 V. You must use realistic concentrations for full credit.
question calculate the density of vanadium which crystallizes in a body centered cubic lattice the length of the edge
Suppose 5.00g of helium gas is added to a 1.00L balloon containing 1.00g of helium gas, define what the new volume of the balloon is
List the following in order of decreasing H3O+ concentration, highest to lowest. A) HC2H3O2, Ka= 1.8x10^-5 B) HClO, Ka= 3.5x10^-8 C) H3BO3, Ka= 7.3x10^-10 D) HC7H5O2, Ka=6.3x10^-5 E) H2S, Ka=1.0x10^-7
A swimming pool is 26.15 yards long and 40.04 feet wide. The pool is filled with water from a hose that has a flow rate of 2.852 gallons/second. How many minutes will it it take to fill the pool to a depth of 4.771 feet
solutions of CaCl2 and urea at 25 C are .961 and .398 atm, respectively. Calculate the Vant Hoff factor for the CaCl solution?
Explain the difference between equivalence point and end point... Explain how the pH at the equivalence point varies as the strength of the acid increases.
the beaker and its contents have a total mass of 289.85 g. What volume does the beaker hold? Use ? =1.00 g/mL as the density of water. b) How much would the beaker and its contents weigh if it was completely filled with mercury? The density of mer..
Briefly describe the process of recycling. Do you recycle? If yes, what types of items do you recycle? If not, why not?
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