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A metal is electrolyzed from aqueous solution by using an electrical current of 1.23 A for 2½ h, and 3.37 g of metal is deposited. In a separate experiment the number of electrons used for the reduction of the metal is 2. What is the metal?
Determine the mass of the lead in grams if the water level in a graduated cylinder initially at 224 mL rises to 274 mL after a piece of Pb is submerged?
what are some difference or similarity in the type of inhibition caused by heat, acid or base and heavy metal ions on enzyme activity.
A 15.00 mL sample of unknown concentration of sulfuric acid is precititated with excess lead(II) nitrate and a precipitate of lead(II) sulfate is collected.
Write the structures of the saytzeff elimination
Determine which species is present in the lowest concentration in 0.10 M H3A solution?
There are 2.2 mg of lead in exactly 500 g of a water sample. What would the concentration of lead be in parts per million.
Determine How much sodium hydroxide (in grams) is required to form 546 mL of solution with a pH of 10.00?
Using a sample of 350. mL air is collected at 35 Celsius has a pressure of 550. torr. if it is allowed to expand to 425 mL at 57 Celsius then What pressure will the air exert?
Describe in brief the risk connected with solutions of 1M NH 3 , 1M HCl, and 1M NaOH?
When a sample of 5.00-g rams of Potassium thiocyanate is dissolved in H2O in a calorimeter that has a total heat capacity =6.225 kJ•K-1, the temperature decreases by 0.200 Kelvin. compute the molar heat of solution of Potassium thiocyanate.
The volume of a 24.0g sample of methane gas is 22.8L at 40.0*C and 4.00atm. What will it's volume be at 68.0*C and 4.00atm.
Rank the given solutions in aquous form from lowest to highest boiling point:
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