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If all the SCN- were not converted completely to FeNCS2+ when the calibration curve was prepared, would this raise or lower the value of Keq?
Tungsten trioxide (WO3) has a rich yellow color and is often used as a pigment in ceramics and paints. In order to test a ceramic vase for its WO3 content
the solubility of mgoh2 s in wataer at a certain temperature is 1.0 x 10-4 moll. calculate the value of ksp for mgoh2 s
An electron in the n = 4 level of an H atom emits a photon of wavelength 97 nm. To what energy level does the electron move?
when al metal reacts with hbr aluminum bromide and hydrogen gas are formed. if you started with 3.75 g of aluminum and
The U.S. Food and Drug Administration lists dichloromethane (CH2Cl2) and carbon tetrachloride (CCl4) among the many chlorinated organic compounds that are carcinogenic (cancer-causing).
If the atmospheric pressure at 30 km is 28.0 torr and the temp is -48 C, what is the volume of the balloon when it bursts?
Complete and balance the following half-reactions. In each case indicate whether the half-reaction is an oxidation or reduction. Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.
A buffer solution contains 0.386 M NH4Cl and 0.316 M NH3 (ammonia). Determine the pH change when 0.064 mol HBr is added to 1.00 L of the buffer
Are all metathesis reactions precipitation type. Give one example to illustrate your point.
Calculate the enthalpy change per mole for this process. ( Assuming C=4.18 J deg c^-1 g^-1 and density of the final solution is 1.00g/ml).
Which compound requires a higher energy photon to cause a p to p* (HOMO/LUMO) transition,
How many millimeters of 1 N NaOH must be added to a 500-mL solution containing 500 mg of acetic acid to increase the pH to 5
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