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When 100ml of M/10 H2SO4 is mixed with 500ml of M/10 NAOH then nature or resulting solution and normality of excess of reactant left is
What are the Russell Saunders term symbols for Thorium and how would I go about finding it
A solution of calcium ions contains 7 meq/250. cm3 of calcium ion. How many moles of calcium ion does this solution contain
Predict the product that is formed when methyl 2-(3-oxocyclohexyl)acetate undergoes
a jewler wishes to make solid gold cylindrical charms with a heightof 2.0cm and a radius of 5.25mm. gold has a density
At equilibrium, the concentration of ammonia is 0.153 M. Calculate the concentration (molarity) of H2(g) at equilibrium to 3 decimal places.
If only 10ml of 3.0 M KOH were used in the alum preparation instead of the specified 25 ml,would KOH then become the limiting reactant? Write the chemical equation for the conversion of Al(s) to solid aluminum alum KAL(SO4)2*12H2O (S)
For each of the reactions, calculate the mass (in grams) of the product formed when 15.51g of the underlined-?vAssume that there is more than enough of the other reactant.
Suppose the ionization enthalpy of sodium metal is quite low at 495 kJ/mol. Explain what is the longest wavelength of light in nanometers, nm that will produce the photoelectric effect with sodium i.e. to eject electrons from sodium.
Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydrogen peroxide,H2O2 , can be titrated against a solution of potassium permanganate,KMnO4
Data: C(graphite) + O2(g) => CO2(g) ?H = -393.5 kJ H2(g) + 1/2O2(g) => H2O(l) ?H = -285.8 kJ CH3OH(l) + 3/2O2(g) ? CO2(g) + 2H2O(l) ?H?? = -726.4 kJ Using the data above, calculate the enthalpy change for the reaction below. Reaction: C(graphite) ..
Air has a density of about 1.2 kg/m3. One standard atmosphere (1 atm) is about 105 Pa. Assuming that the density of air remained constant as altitude increased, how high would the Earth's atmosphere have be to create a pressure of 1 atm
Two different gases occupy the two bulbs shown here. Consider the process that occurs when the stopcock is opened, assuming the gases behave ideally. Draw the final (equilibrium) state. Predict the signs of ?H and ?S for the process.
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