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A thin layer of gold can be applied to another material by an electrolytic process. The surface area of an object to be gold plated is 49.7cm2 and the density of gold is 19.3g/cm3. A current of 3.25A is applied to a solution that contains gold in the +3 oxidation state.Calculate the time required to deposit an even layer of gold 1.10×10?3
normal glucose levels in the blood are from 70 to 10 mg glucose per 100 mL of blood. If the level falls too low, there can be brain damage.
The gas was obtained by boiling liquid nitrogen stored in a 180.0 L tank. What volume of N2 is released at 0.955 atm of pressure and 25 degree celsius from a tank full of liquid N2 (d=0.808 g.mL)?
An experiment identical to the one you just preformed is done by another student.except the amperage is continuously increased while the sulfuric acid concentration is kept constant
This solution was back-titrated with a 0.0440 M Ga3 solution until all the EDTA reacted, requiring 12.0 mL of the Ga3 solution. What was the original concentration of the V3 solution?
The enthalpy for combustion of benzene (C6H6) is -3270 KJ/mole. How much heat is release on the combustion
A car travels at 58.0 miles per hour and gets 10.0 kilometers per liter of gasoline. How many gallons of gasoline are needed for a 1.00 hour trip.
determine How many grams of Phosphine (PH3) can produce if 37.5 grams of P4(phosphorus) and 83.0 Litres of H 2 gas react at STP?
The boiling point of chlorform CHCL3 is 61.70 degrees C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in chloroform is aspirin
A mixed alkali sample requiring 15.0ml of 0.100 F HCl to reach the first end point and an additional 20.0ml to reach the second end point
Niobium (Nb) has a BCC cubic crystal structure, and an atomic radius of 0.144 nm. a) Calculate the edge length (d) of a niobium unit cell:
An unknown compound degrades when exposed to sun light by first order kinetics. The half-life for this process is exactly 5.12 weeks. What is the rate constant
Calculate the theoretical and percent yields, b: 20.0g of NaHCO3 is heated to form Na2CO3. Calculate the theoretical loss in weight on heating
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