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Calculate the molarity of each of these solutions.
a. A 5.623-g sample of NaHCO3 is dissolved in enough water to make 250.0 mL of solution.
b. A 184.6-mg sample of K2Cr2O7 is dissolved in enough water to make 500.0 mL of solution. c. A 0.1025-g sample of copper metal is dissolved in 35 mL of concentrated HNO3 to form Cu2 ions and then water is added to make a total volume of 200.0 mL. (Calculate the molarity of Cu2.)
Propane in the feed to the unit and 80% of the pentane fed to the unit. The mole fraction of butane in the distillate is yB ? 0.4 . The bottom stream contains all of the hexane fed to the unit. Calculate the distillate and bottoms streams flow rate a..
part-1why fiuids are importantnbspin chemical engineering1. enormous number of materials normally exist fias gases or
The composition of a gas derived by the gasification of coal is, volume percentage: carbon dioxide 4, carbon monoxide 16, hydrogen 50, methane 15, ethane 3, benzene 2, balance nitrogen. If the gas is burnt in a furnace with 20% excess air, calcula..
Determine the properties of the gas-vapour mixture using suitable models. Derive psychrometric relationships for the gas-vapour mixture and create the associated
Describe the principles of a vapour adsorption refrigeration system, and compare this to a vapour recompression system. Which of the two systems is more suitable for refrigeration processes in a brewery or distillery and why?
What mass of ethylene glycol, HOCH2CH2OH, must be dissolved in 4.510 kg of water to result in a freezing point of 18.0°C? What is the boiling point of the same solution?
Important information about Chemicals for Indoor Concrete Flooring Explanations on high solids floor finish chemicals used on indoor concrete flooring
A scheme for concurrently heating separate water and air streams involves passing them through and over an array of tubes, respectively, while the tube wall is heated electrically. To enhance gas-side heat transfer, annular fins of rectangular pro..
describe the principles of a vapour adsorption refrigeration system and compare this to a vapour recompression system.
A completely enclosed stirred-tank heating process is used to beat an incoming stream whose flow rate varies. The heating rate from this coil and the volume are both constant.(a) Develop a mathematical model (differential and algebraic equations) tha..
Calculate the volume of blood in the rat. What assumptions must be made in performing this calculation?
question 1the effect of a hazardous substance depends on the concentration of the substance that is present in the
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