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Calculate the work (in kJ) done on the system when 1.10 moles of hydrogen gas are produced from the reaction of sodium in excess water at 298 K: 2Na(s) + 2H2O(l) ? 2NaOH(aq) + H2(g)
What volume (in milliliters) of 0.190 M NaOH should be added to a 0.135 L solution of 0.022 M glycine hydrochloride
When there are 3 lone pairs around the central atom with 5 electron pairs, the lone pairs occupy which of the following. all axial positions one axial and two equatorial positions. two axial and one equatorial positions all equatorial positions
What is the electron configuration of diatomic BN+. What is its bond order
Calculate the mass in grams of calcium bromide the chemist has added to the flask. Round your answer to 3 significant digits.
when a metal was exposed to light at a frequency of 4.63*10^15 Hz, electrons were emitted with a kinetic energy of 3.10*10^-19 J.
When hydrochloric acid comes in contact with potassium permanganate, what dangerous chemical is released?
Calculate the maximum concentration of Ba2+ in water when solid BaCl2 and BaSO4 are present. Calculate whenBaCLs and BaSO4 are seperate and together.
Draw Lewis dot structure and predict molecular geometry - Show the Lewis structures of the following molecules and then predict their geometry.
How much heat (in kf ) is evolved in converting 1.00 mol of steam at 150.0 C to ice at -45.0 C? The heat capacity of steam is 2.01 j/g*C and of ice is 2.09 j/g*C .
A sample of gas has a volume of 1.55 L at 35 °C and 1.05 atm. What is the pressure (in torr) if the volume changes to 1.38 L and temperature to -28 °C.
If the equilibrium concentration of Fe3+, SCN-, and FeSCN2+ are 0.00140 M, 0.00140 M, and 0.000414 M, respectively, calculate the equilibrium constant for Fe3+ + SCN- FeSCN2+.
A solution has a hydronium ion concentration of [H3O+] = 5.3 x 10^-4 Determine the pH of this solution.
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