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A current of 3.58 A is pass through a Cu(NO3)2 solution. Explain how long in hours would this current have to be applied to plate out 4.50 g of copper
Calculate the molar mass of the compound if given that normal freezing point of C6H6 = 5.5 oC , the freezing point depression constant for C 6 H 6 = -5.12 o C/m .
Example: Determine the solubility of calcium fluoride at 25C. And Be sure to note the difference between Solubility and Solubility Product Constant ! What could we do to change the system and produce a precipitate?
Number of Moles and Conversion, a) Number of moles of carbon atoms in 0.585 moles C4H10
draw the structure of the product of each of these organic reactionsi reaction of methanol and aqueous potassium
Oxidation-Reduction Reaction Use the half-reaction method to balance the following oxidation-reduction reaction under basic conditions. Physical states are not required. Write each balanced half-reaction and the final balanced net ionic equation.
A 10.0-ml sample of house hold ammonia solution required 18.15 ml of 0.320 M HCI to reach neutralization. Calculate(a) the molar concentration of the ammonia and (b) the mass/mass percent concentration of ammonia (17.04 g/mol), given a solution de..
Draw the Lewis structure of chlorous acid (HClO2). The result is that around Cl there are Fill in the Blank 01 (a number) bonding groups and Fill in the Blank 02 lone pair(s) of electrons. The number and types of structural groups aroud Cl corresp..
The standard free energy of a reaction A is 87.4 kJ/mol (20.9 kcal/mol) at 298 K. Reaction B is ten million times faster than reaction A at the same temperature. The products of each reaction are 10.0 kJ/mol (2.39 kcal/mol) more stable than the re..
Find delta heat formation of butane. C4H10 + 13/2 O2 ---> 4 CO2 + 5 H2O. Delta H comb= -2881.9 Delta Heat formation of CO2 = -393.5kJ/mol Delta Heat formation of H2O = -241.8kJ/mol What is the kJ
Propose the kinds of attractive forces that might bind congo red to cotton fabric.
if 6.73 g of NaCo3 is dissolved in enough water to make 250. mL of solution what is the molarity of the sodium carbonate ?
A "free" element A monoatomic ion Part of an ionic or covalent compound Part of a polyatomic ion I know that H and O's numbers can change depending on how they are bound to other elements, but usually H is +1. However a more simple way to memorize..
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