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Explain what is the net ionic equation for the solute NaCL in H20? We are told to write the dissociation first if it applies.
NACL-----> Na+ + Cl-
8.0 mL of 10.0 ppm fe 2+ solution is diluted to 100.o ml. What is the concentration (in ppm) of the resulting solution?
Write a balanced chemical equation for the following reaction in an acidic solution. Cr2O72-(aq)+Br-(aq)>>Cr3+(aq)+Br2(aq)
what are different types of separating techniques for separating salt and
A 1.724 M solution of a compound in water has a density of 1.281 g/mL at 20°C. The compound has a molar mass of 62.30 g/mol.
Balance the following ionic Lewis structures by placing the appropriate coefficients. Leave a target blank to indicate the absence of a coefficient
Determine the enthalpy change deltaH for the reaction at 298 K B. Determine deltaS surr for the reaction C. Determine deltaS sys for the reaction D. Determine deltaG for this reaction. Will this reaction be spontaneous
H2S gas has a volume of 3.0 L at 110,388 Pa and 55C. How many moles are present? And what would the mass be in grams
In the Macy's Thanksgiving Day parade, 2000, there was a new float, the Cheerios' bee, and Buzz bee. The jar of honey it was holding contained 36,763 L of helium.
Calculate the mass defect of the fluorine nucleus19/9F . The mass of neutral is equal to 18.998403 atomic mass units. Calculate the binding energy Eb of the fluorine nucleus 19/9F . Calculate the binding energy per nucleon of the fluorine nucleus ..
One of the chair conformations of cis-1,3-dichlorocyclohexane is more stable than the other by 25.0 kJ/mol. Use this to estimate the energy cost of a 1,3-diaxial interaction between two chlorine atoms. Be sure to specify units.
In a second experiment, I(electric current) broke down a sample of H 2 O into 1.45 grams of hydrogen and 11.51 grams oxygen. Are these results reliable with the law of exact extent?
the radius of a helium atom is 32pm and its mass is 6.55 x 10-24g. what is the density of the atom in grams per cubic
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