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Explain it has been suggested that gold might be recovered from seawater. If seawater contains about 4 x 10-9g/L of dissolved gold, explain how many liters of seawater would have to be processed to get 1.00 ounce of gold? (1 oz=28.4 g)
Explain how many grams of AgNO3 (169.9 g/mol) must be added to 250.0mL of a saturated solution of Ag2SO4 to reduce the solubility of the Ag2SO4 to 1.0 x 10-3 M.
consider the following. this process would result in the formation of (a) a positive ion and negative ion (b) two neutral species (c) two radicals (d) two negative ions (e) a positive ion and a neutral species
Determine the freezing point of an aqueous solution that is 1,7 m in ethylene glycol. The freezing point depression constant for water is 1.86°C/m The freezing point of pure water is 0.0°C.
0.300 moles of an unknown monobasic weak acid are added to 1.20 l of water. the resulting solution has a ph of 8.800.
A solution of ethanol (C2H5OH) in water is prepared by dissolving 60.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 235.0 mL of solution. What is the molarity of the ethanol in this solution?
Draw a newman projection (about the C3-C4 bond) of the most stable conformation of 2,2,3,4,5,5 hexamethyl hexane for the meso stereoisomer.
When a solution of nickel(II) chloride is mixed with a stoichiometric amount of colorless sodium hydroxide solution, a green, gelatinous precipitate forms.
Heating any of the three isomeric dimethylbenzenes with HF in the presence of BF3 to 80 C leads to the equilibrium mixture shown below: 1,2-Dimethylbenzene: 18% , 1,3-Dimethylbenzene: 58% , 1,4-Dimethylbenzene: 24%
The molar mass for NaCl and water are 58.443 g/mol and 18.015 g/mol, respectively. Calculate the partial molar volumes for NaCl and water in a 0.35m solution.
1.25 moles of NOCl were placed in a 2.50 L reaction chamber at 427ºC. After equilibrium was reached, 1.10 moles of NOCl remained. Calculate the equilibrium constant, Kc, for the reaction 2NOCl(g) > 2NO(g) + Cl2(g).
What is the equilibrium concentration of chloroacetic acid, HC2H2O2Cl, in a solution prepared by dissolving 0.0277 mol of HC2H2O2Cl in 1.00 L of water
2. The correctly drawn Lewis formula for NH2OH will have
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