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A galvanic (voltaic) cell consists of an electrode composed of magnesium in a 1.0 M magnesium ion solution and another electrode composed of copper in a 1.0 M copper(I) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C.
When sodium reacts with water, 255 mL of hydrogen gas forms along with sodium hydroxide. What mass of sodium is needed for this reaction?
Without doing a calculation, which of the bonds below would you expect to have the higher stretching frequency. C-O or C=O
The specific heat of the product is 4.06J/g deg. C and the density is 1.01g/mL. a. Calculate the heat of the reaction, q, and the enthalpy per mole.
The average osmotic pressure of blood is 7.7 atm at 25.0c. What molarity of a sterile saline (i.e., aqueous sodium chloride) solution is isotonic with blood (Use a van't Hoff factor of 2.00 for sodium chloride.)
Butane C4H10 is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is
If an automobile airbag has a volume of 9.80 L, what mass of NaN3 is required to fully inflate the airbag upon impact under conditions of atmospheric pressure (1.00 atm) and room temperature (25 C).
Draw the structure of the peptide WRCFQ. Show the ionization state that would be the major form at pH 7. (Note: this question addresses your knowledge of the one or three letter codes for amino acids,
Determine how much dolomitic lime(is an anhydrous carbonate mineral composed of calcium magnesium carbonate CaMg(CO 3 ) 2 ) is required to apply to raise the pH to 7.0?
a new solid octahedral complex has been synthesis containing only chloride ans ammonia ligands. when 9.64 10-4 moles of
in the formula sodium phosphate na3po4 how many moles of sodium are represented? how many moles of phosphorus? how many
How to improve yield for methyl-m-nitrobenzoate from nitration of methyl benzoate experiment
Analysis of water in a sediment sample at equilibrium at ph 7.00 showed [so42-] = 2.00 x 10^-5 m and a partial pressure of h2s of 0.100 atm. show with appropriate calculations if methane, ch4, would be expected in the sediment.
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