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Question: 90ml of an unknown concentrated chlorine was diluted with 2250l of water. The dilution now is 0.08mg/l. what is the initial concentration of the chlorine before dilution?
Find the rate of the reaction - What is the rate of the reaction?
The density of mercury is 13.595 g cm -3 . What will be this value in SI units? Give the SI units and their symbols for the following physical quantities:
What will be the resultant pressure when the stopcock is opened?
Write balanced chemical equations for the following reactions.
Find the temperature and the pressure of a gas inside the cylinder - what was the initial pressure of the gas in the cylinder?
Analysis of corrosion mechanisms and preventative measures
Using Le Chatelier's Principle to predict the effect of a change in conditions on a chemical equilibrium - Predict how the equilibrium of the following reactions will be affected by the changes listed.
Why does the absolute refractory period occur and What is happening in the cell.
Identify the unknown gas - Find the molecular formula of the compound
Find the formula of a compound using stoichiometry and ideal gas equation and Deduce from these data the corresponding equation and write formulas for the oxide and sulfate of M .
Use of fossil fuels - Should we be burning the raw materials for medicine and polymers? Where will we be in 50 years on this issue?
Properties of subatomic particles - Fill in the missing relative masses and relative charges for each of the subatomic particles
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