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If you pass 10.0mL of a 50.0mL solution of [Co(en)2Cl2]Cl that has been reduced with Zn through a cation exchange column, you will obtain a solution that has three H+ ions for every Co3+ ion that was originally present in the sample. These H+ ions are titrated with 0.10-M NaOH solution. It is found that 20.0mL of NaOH are required. a.) How many moles of NaOH are used? I got .002 mol
Show how you would synthesize the following compound. as starting materials youmay use any alcohols containing four or fewer carbon atoms, cyclohexanol and any solvents and inorganic reagents. the compound is bromobutylcyclopentane
Calculate the change in enthalpy of HCl + NaOH--> NaCl + H2O for this reaction using Hess's Law. Units should be kJ/mol.
A certain antacid contains only Al(OH)3 (FW=78.00) and Mg(OH)2 (FW=58.33). If a 0.2678 g sample of the antacid requires 10.25 mL of 0.9815 M HNO3 for neutralization, what is the % by mass of Al(OH)3 in the mixture
Cholesterol in blood is measured in milligrams of cholesterol per deciliter of blood. Hospital blood banks normally store blood in samples of 500 milliliter polyethylene bags.
what is the change in enthalpy when 18.4 g of steam at 100?c is converted to liquid waterat the same temperature and
A polar bear may burn as much as 1.5 kg of fat resources a day. A polar bear must consume enough seals to compensate for this huge energy expenditure. If you needed to survive on seal blubber as your diet, how many grams would you need to consume ..
What volume (in mL) of water must be added to a 1.133 M solution of sodium chloride to make a 52.4 mL of a 0.52024 M solution? Assume the volumes are additive.
how much heat is required to warm 215 g of ice from -44.1degc to 0.0degc melt the ice warm the water from 0.0degc to
calculate the expected change in temperature for 4.5 g of nh4no3 dissolved in 100.0 ml of h2o.assume that the
Determine the moles of benzene that would be needed to completely react with 0.445 moles of oxygen
The few gas analysis shows as carbon dioxide 14%, carbon monoxide 0.4%, oxygen 5.6% and nitrogen 80%. The air used has a dew point of 50°F. The barometer shows 29.9 inches of mercury. Calculate the dew point of the stack gas.
A mixture of Helium, Neon, and Nitrogen gases has a pressure of 1.348 atm. Determine what is the partial pressure of N2 in the mixture If the pressures of Helium and Neon are 0.124 atm and 0.996 atm, respectively.
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