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Copper is electroplated from CuSO4 solution. A constant current of 10.0 amps is applied by an external power supply for exactly 75.0 minutes. How many grams of copper can be plated out during this time interval? The atomic mass of copper is 63.55. a. 29.6 g b. 0.00367 g c. 7.4 g d. 14.8 g e. 0.247g
Equilibrium between the composition of Hydrogen sulphide in the gaseous and liquid phases can be represented as Yn=48.3Xn.
the required removal or conversion of A is 90%. If the rate constant, K, is 0.35hr-1, what is the required residence time in hours for the batch reactor?
If 157 of wet is collected over water at 24 degrees C and a barometric pressure of 737 Torr , how many grams of Zn have been consumed? (The vapor pressure of water is 22.38 Torr)
Initially, .500 atm of H2 and .500 atm I 2 are mixed in an evacuated 1.0 L flask. The system is allowed to come to equilibrium and it is found tocontain 0.318 atm HI. What is the equilibrium partial pressure of I2 for the reaction shown below?
The molecular formula of glycine (an amino acid) is NH2CH2COOH, the molecular mass is 75.07grams/mole. If 10 glycines are joined together by a dehydration reaction to make a polypeptide, what would the molecular mass of the polypeptide equal.
calculate the freezing and boiling points of each of the following solutions. 0.40 mol ethylene glycol and 0.17mol KBr in 122 g H2O.
A 739 mL gas sample at STP is compressed to a volume of 244 mL, and the temperature is increased to 24 ?C. What is the new pressure of the gas in Pa?
Using a flow diagram, show the separation of a mixture containing p-bromoacetanilide, N-cyclopentyl-N-methyl-N-propylamine (N mean the group is attached to the nitrogen of the amine and m-nitrophenol. Specify the organic solvent and aqueous soluti..
The concentration of glucose in blood is approximately 90 mg/100 mL. What is the weight/volume percent concentration of glucose. what is the molariy of glucose
Explain the efffect of temperature on the solubility of gases in liquid? What effect does pressure have on the solubility of gases in liquid( Henry's Law)?
Why does K + N2 yield no reaction. could some one please explain what factors contribute to no reaction
what is the least amount of energy that can be emitted by an excited electron in a hydrogen atom falling from an excited state directly to the n=3 state? what is the quantum number n for the excited state
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