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Write the Lewis structures that obeys the octet rule for each ofthe following
a) SO2 (hint: sulfur is the central atom)
b) CN- (cyanide anion)
Write the Lewis structures for the ozone molecule (O3). Show allresonance structures. Draw the Lewis structure for the bicarbonate ion (HCO3-). Show allresonance structure.
A) What is the energy of the photon absorbed to raise the electronin a hydrogen atom from the energy level n = 1 to the energy level n = 3?
b) Calculate the frequency, in s-1, of the electromagneticradiation absorbed by this hydrogen atom in question A)?
In biochemistry laboratories, solutions of sucrose (table sugar, C12H22O11) are used in high speed centrifuges to separate the parts of a biological cell. How many liters of 2.69 M sucrose contain 217 g of solute
What volume (mL) of a concentrated solution of magnesium chloride (9.00 M) must be diluted to 350. mL to make a 2.75 M solution of magnesium chloride
a student found that a maximum of 0.800g silver acetate is able to dissolve in 100.0ml of water. what is the molar
A flask containing gaseous N2 is irradiated with 25 nm light. The irradiated moleculars of N2 can absorb the energy from the light photons. Using the following information indicate what species can from in the flask during irradiation.
A car's catalytic converter combines carbon monoxide, a poisonous gas, with oxygen to form carbon dioxide gas. A balanced equation indicates the mole ratios of reactants and products.
A 53.6 gram sample of an unknown substance contains 11.5 grams of carbon. What is the percent by mass of carbon in the compound?
caproic acid contains carbon hydrogen and oxygen. combustion analysis of a 0.450g caproic acid sample gives 0.418g of
waste water from certain industrial chemical processes contains aqueous ions. since the mercury ion is toxic it is
What volume in ml of 0.0293 M Ba(OH)2 is required to neutralize 25.00 ml of 2.00 M HN03
calculate the percent yield for the reaction p4 s 6 cl2 g rarr 4 pcl3 l if 75.0 g of phosphorus reacts with excess
Describe a controlled experiment to investigate the effect that the amoun tof salt has on the corrosion process of a copper penny.
calculate the volume, in liters, occupied by 3.25 moles of Cl2 gas at 1.54 atm pressure and a temperature of 213 degrees celcius?
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