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What can you say about the realtive magnitudes of the latice energy of lithium iodide and its heat of hydration?
If 24.6 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 301 Kelvin and 1.01 atmospheres? Show all of the work used to solve this problem.
what mass of aluminum chloride will be produced if 22.6 grams of zinc chloride are used up in the reaction?
Considering which elements are being oxidized and reduced, determine how many moles of electrons are transferred between the elements being oxidized and reduced.
What mass of K2CO3 is required to clean up a spill of 489 ml of 3.50 M HCl if HCl(aq) reacts with K2CO3 according to:
2NOCl(g) 2NO(g)+Cl2(g) 0.600atm of nitosyl chloride is sealed in a flask and allowed to reach equilibrium. If 27.0% of the NOCl decomposes, what is the equilibrium constant for the reaction?
Determine the errors (if any) with each galvanic cell set-up when the anode is on the left. (Select all that apply.)
Write the balanced equation for the ionization of the weak base pyridine, C5H5N, in water, H2O. Phases, such as (aq) or (l), are optional.
Methanol, a potential replacement for gasoline as an automotive fuel, can be made from H2 an CO by the reaction CO(g)+2H2(g)-CH3OH(G) How will this reation be affected if the volume of the container
Calculate the equilibrium concentrations of , , and in a reaction mixture obtained by heating 5.65 of steam and an excess of solid carbon in a 5.45 container.
Which stting material in the reaction if the limiting reactant and which material is present in excess? Show calculations and all work for your determination of this. 3CuCl2(aq) + 2Al(s) -> 2AlC
At room temperature (20^circ rm C), milk turns sour in about 63 hours. In a refrigerator at 3^circ rm C, milk can be stored three times as long before it sours. Estimate the activation energy of the
What is the pressure in atmospheres in a container of gas connected to a mercury-filled, open-end manometer if the level in the arm connected to the container is 24.6 cm higher than in the arm open
An ordinary 3.0 V flashlight bulb draws roughly 0.25 A of current and converts about 1.0% of the electrical power into light (λ = 550 nm). If the flashlight beam initially has a cross-section
Use the data to determine the heat of vaporization of nitrogen in kJ/mol. Determine the normal boiling point of nitrogen in Kelvin.
You and a friend are having dinner at a restaurant. You order strong, hot tea with lemon, and your friend orders plain hot tea. When your drinks arrive, the waiter apologetically informs you that he h
How many pi bonds are there in a molecule of crotononitrile? How many sigma bonds are there?
An extended source emits 2.00 W cm-2 sr-1 nm-1 at 300 nm. Calculate the spectral radiant power impingent on a 1.00 cm2 receptor that5 is 2.00 M away in W nm-1 and photons s-1 nm-1 if a 1.00 mm diame
The hydrogen in the water comes from the hydrocarbon compound. If the molecule contains only C, H, and O, what is the empirical formula?
A beam of 632.8 nm photons from a He-Ne laser strikes a detector area of 5.0 mm2. The laser has a flux of 3.18 x 1015 photons s-1. a(a) What is the laser radiant power in watts?
Calculate the volume of a sample of carbon monoxide at -21°C and 359 torr if it occupies 3.65 L at 298 K and 758 torr.
A gas made up of homonuclear diatomic molecules escapes through a pinhole .533 times as fast as Ne gas. Write the chemical formula of the gas.
Write the balanced equation for the reaction for Delta H is the lattice energy for potassium bromide
An extended source is spherical in shape with a radius of 2.00 cm and emits 12.57 W from 399.5 to 400.5 nm. Determine the spectral radiant emittance, the spectral radiant intensity, and the spectra
if the reaction between iron III ion and thiocyanate ion yielded an equilibrium concentration of .15M for each of these ions, what is the equilibrium concentration of the red iron III-thiocyanate co