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A 1.2 M HCl solution prepared from 16.0 mL m L of a 6.0 MHCl solution
What is the volume in mL of diluted solution, Use 2 sig figures.
In an experiment, 1.26 grams of iron combines with oxygen to give a compound that has a mass of 1.80 grams. What is the empirical formula of the compound?
Which of the following bonds is the strongest?
Is it possible for a fluorescent material to emit radiation in the ultraviolet region after absorbing visible light
You are given an acid with an equivalent weight of 62.5 g. What is the average molecular weight if the acid is diprotic? a) How many grams of your acid are needed to make 150mL of a .750 N (normal) solution?
consider the gas phase decompositon reaction of 2nocl----gt 2no cl2. the concentrations of nocl and cl2 are plotted
Draw a graph to show how surface area of reactants (x-axis) affects reaction rate (y-axis). Label the graph correctly. Then discuss collision theory and explain the effect of surface area on reaction rates.
The pre-exponential factor for the gas-phase decomposition of ozone (unimolecular reaction) is 2.3x1013 L mol-1 s-1, and the experimental activation energy is 30.0 kJ mol-1. What is (a) the entropy, (b) the enthalpy and (c) the Gibbs free energy o..
Calculate the mass (in grams) of the product formed when 15.64 g of Cl2 reactant completely reacts. Assume that there is more than enough of the other reactant.
calculate the change in pH that occurs when 1.00 mmol of a strong acid is added to 100 mL of 0.0500 M HCl.
The child outside the wagon? The wagon? Calculate the acceleration. What would the acceleration be if friction is 20.0?
Calculate the work, heat, energy and enthalpy change upon: a) expansion by 3.3 L at p=const (isobaric). b) isothermal expansion by 3.3. L against a constant external pressure of 30.0 kPa c) reversible isothermal expansion by 3.3 L.
Two methods for determining Hg in coal fly ash using atomic absorption were used to see if both methods would give the same results. In the first method only HNO3 is used for digestion,
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