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A jewerly manufacturer is going to silver plate copper necklacesusing a solution of Ag(CN)2- ions. If eachnecklace has a volume of 2.10 × 10-3cm3, how many necklaces can be silver plated in 12.0 minutes using a current of 164.0 milliamps.The density of metallic silver is 10.5 g/cm3Enter a numerical answer only.Enter a decimal value to also include the fraction of a braceletthat is plated.
A 2.50 g sample containing As2O5, NA2HAsO3, and other materials is dissolved and neutralized. The As(III) is fully titrated by (oxidized by) 11.3 mL of 0.150M I2. All the arsenic present is now in the +5 state. Excess KI is added.
The acid-dissociation constants of phosphoric acid (H3PO4) are Ka1 = 7.5 × 10-3, Ka2 = 6.2 × 10-8, and Ka3 = 4.2 × 10-13 at 25.0 °C. What is the pH of a 2.5 M aqueous solution of phosphoric acid
1. one of the standard solutions had an abnormally low absorbace reading causing a less positive slop for the
You need to produce a buffer solution that has a pH of 5.05. You already have a solution that contains 10 mmol (millimoles) of acetic acid. How many millimoles of acetate
The molar heat capacities of iron and gold are 25.19 J/(mol c) and 25.41 j(mol c). what is the final temp of the water and the pieces of metal
What is the total pressure in a 11.0 L flask 20.0°C, which contains 0.127 moles of H2 and 0.288 moles of N2
Write balanced complete ionic equation for the following equation: Express your answer as a chemical equation.
The concentration of Ag+ in a solution saturated with Ag2C2O4(s) is 2.2 multiplied by 10-4 M. Calculate Ksp for Ag2C2O4.
However, a water transporter was discovered in 1992 and it was named aquaporin. Aquaporin is a single subunit protein that is barrel-shaped and open to both sides of the membrane
what are the advantages of working with microscale equipment as opposed to larger equipment in a williamson ether
What is the pH of the solution created by combining 1.70 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HC2H3O2(aq)
Please rank the following aromatic compounds in order of their reactivity in electrophilic aromatic substitution: anisole, nitrobenzene, acetophenone, toluene, benzene. Briefly explain your answer.
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