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Question- In a discharge spectrum, Li displayed two lines 0.7nm apart. What wavelength of light would promote an electron to the higher excited state?
As much detail as probable is really appreciated
Can some explain clearly how to determine the valence electrons of transitional metals and also their ions. for ex Mo, Mo2+, Ag, Pb. Pb2+. Confuse about what makes up their outer shell.
Problem- A saturated solution of carbon-dioxide in water contains.0682mol/L of carbon-dioxide when the carbon-dioxide partial pressure is 8 atmospheres. What mass of carbon dioxide will escape if the partial pressure is lowered to 3.2 atmospheres
Calculate the number of free electrons per cubic meter for copper, assuming that there is one free electron per copper atom. The electrical conductivity and density
what is the redox number for nitrogen in a molecule of nitrogen dioxide and iron
When 14.0ml of HCl of unknown concentration (but less than that of the base) are reacted with 15 ml of 3.218M NaOH, 2.01KJ of heat are released. What is the molarity of the HCl solution
Sn2 reactions occur at different rates depending on the structure of the substrate in the reaction . Would an Sn2 reaction occur at a faster rate on a primary or a tertiary substrate ? Briefly. Explain your answer
If the weight of the gas in the bulb is 0.3554 g, what is the mole percent of butane in the mixture. Set up two equations to solve simultaneously for the two unknowns, the moles of ethane and butane.
How many moles of nitrogen are required to fill a 3.50 L tank at 25.0 oC to a final pressure of 8.74 atm
If a 295 mL sealed container at 25 °C contains 0.80 g of a gas at 680 torr. Define what is the molar mass of the gas
the final temperature of both the water and metal is 32.81 degrees C. The specific heat of water is 4.184j/g*K. What is the speciic heat of the metal?
Presume you have 5.00 g of powdered magnesium metal 1.00 L of 2.00 M potassium nitrate solution and 1.00 L of 2.00 M silver nitrate solution.
How many grams of silica were in a 6.00 grams sample, if it took 34.1 mL of 0.95 M HCl to react with all of calcium carbonate
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