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How would I name the organic compound with a 5 carbon chain, one double bond between 3,4 carbons and 2 Br groups on the 2,4 carbons?
If you want to dope GaAs to make an n-type semiconductor with an element to replace Ga, which of the elements below would you pick
Calculate the molecular mass of the nonionic solutes.
benzoic acid in water is 6.8g per 100ml at 100 degrees c, and .34 per 100ml at 25 degrees c. calculate the minimun volume of water needed to dissolve 1.00g of benzoic acid.
Ionization energy is the energy needed to eject an electron from an atom. Compute the ionization energy of a hydrogen atom in its fourth
The atom then emits two photons: one of wavelength 1282.2 nm to reach an intermediate level and a second to return to the ground state. What was the wavelength of the second photon emitted?
Calculate the fraction of atom sites that are vacant for silver at 695°C. Assume an energy for vacancy formation
A 0.1946 g piece of magnesium metal is burned in a constant volume calorimeter that has a heat capacity of 1349 J/°C.
Suppose you wanted to find out how many milliliters of 1.0 M AgNO3 are needed to provide 169.9 g of pure AgNO3.
Rather than weigh the sample on a balance a chemist wants to dispense the liquid using a pipette. What volume (in mL) should she measure out?
The boiling point of a glucose solution (d = 1.16 g/mL) is 100.21 oC. Calculate the osmotic pressure of that solution at 298K. (glucose = 180.2 g/mol ; kfp for water = 1.86 oC/m ; kbp for water = 0.520 oC/m)
what concentration of oxygen would be needed to maintain equilibrium in a system where NO and NO2 are known to be at equal concentrations
the pressure of a sample of helium in a 1.00-liter container is .988 atm. What is the new pressure if the sample is placed in a 2.00 L container?
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