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In this activity, you will develop an experimental procedure to solve a problem. Consider the following scenario:
You are the manager of a chemical stockroom, and find a bottle containing approximately one liter of a clear and colorless solution of unknown identity and concentration. Your only clue to its identity is that it was found between bottles of silver fluoride and sodium fluoride, so it is likely an aqueous solution of one of those two compounds. You will need to develop a procedure to determine the following:
a) The identity of the unknown solution ( I need help to identify the solution )
b) The concentration of the unknown solution ( I need help to identify the unknown solution)
precise procedure, which includes all glassware, reagents, and steps and the calculations that is need to determine the concentration of the solution.
Problem- Find the number of cals needed to raise the temperature of 60.0g of Al from 35C to 55C. The molar heat capacity of Al is 5.8 cal/mol C.
The density of lead is 11.4 g/cm3 at 25°C. Calculate the volume occupied by 25.0 g of lead.
If the starting concentration of sodium ions is 0.30 M and the starting concentration of tetraborate ions is 0.15 M at 25 C use an ICE table to find the equilibrium concentrations of sodium and tetraborate ions using the initial concentration. Keq..
A gas occupies 672 mL at 785 mmHg. What volume would it occupy at 453 mmHg at constant temp??
Determine the hydroxide ion concentration and the percentage dissociation of a .150 molar solution of aniline at 25 degrees Celsius.
The dimerization of ClO is second order in ClO. Use the following data to determine the value of k and the half-life at 350 K
Using the method of successive approximations, what is [H3O+] in 0.00500 M CH2ClCOOH(aq) (Ka=1.4x10^-3) and how many iterations (n) are needed to validate that a constant value had been obtained? Express [H3O+] using two significant figures, follo..
Provide a straight forward explanation of what a redox reaction is and what equilibrium is. Also explain how redox reactions are the source of electron flow in batteries and how a dead battery can be said to have attained equilibrium?
At what Kelvin temperature will the reaction proceed 4.50 times faster than it did at 309 K?
A solution of 120 mL of 0.150 M KOH is mixed with a solution of 260 mL of 0.200 M NiSO4. How many grams of the precipitate can be formed?
Consider the malate dehydrogenase reaction from the citric acid cycle. Given the following concentrations, calculate the free energy change for this reaction at 37.0 °C (310 K).
Consider the reaction between 50.0mL of 0.200 M sodium hydroxide and 75.0mL of 0.100 M HCl. Which of the subsequent statements is correct
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