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A Mercury barometer reads 743.5 mmHg. If the density of mercury is 13.523 g/cm^3 at 80.0 degrees C, what would be the height of a water column be if the density of water is 0.972g/cm^3 at 80.0 degrees C?
A balloon with the volume 40.0cm^3 contains helium gas at STP. What is the number of helium atoms in the balloon
When you heated the hydrated compound this process starts slowly at first find out the reason behind this and compute k for this acid if A 0.020 M solution of weak acid HA is 0.60% ionized.
Make a drawing that illustrates how the diethylammonium ion might interact with tetrachlorocuprate(II), what are the hazards with this combination
what volume will a 300.0 mL sample of gas at STP occupy when the pressure is doubled at constant temperature
considering the molecule hooh. what happens to the overlap in the sigma bond between the 2 o atoms as one hydroxyl
How does the first ionization energies change as you go from left to right across the periods; explain what causes the trend to fluctuate
If 2.5 mL of seawater contains about .0000000000058 moles of gold (Au), how many atoms of gold are in that volume of seawater
The geometric angle BETWEEN the two bonds that connect an alpha-carbon to its nearest neighbors on the polypeptide backbone is approximately 109 degrees. Explain.
AgCl is a sparingly soluble salt, with a solubility of about 10-5 M in pure water. Adding KCN increases the solubility of AgCl because: CN- reacts with Ag+ to make a soluble complex.
25.00 ml of a .250 M NH3 solution is titrated with .100 M HCl. What is the pH after 5.00 ml of HCl has been added? Kb of NH3 = 1.76*10^-5. (please show all calculations)
elemental exonium not a real element consists of two major isotopesabundance mass59 94 amu41 112 amuwhat is the atomic
Dimethyl sulfoxide is an aprotic dipolar solvent that readily dissolves many inorganic salts. Water is a protic dipolar solvent that dissolves inorganic salts.
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