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If the emission lines in a particular series of the hydrogen atom were studied (for example, the lines int he Balmer series), what type of graph would be obtained from a plot of 1/lambda as a function of 1/ni2 ?
A scientist wants to make a solution of tribasic sodium phosphate. Na3PO4 for a laboratory experiment. how many grams of Na3PO4 will be needed to produce 625 mL of a solution that has a concentration of Na+ ions of 0.700 M
The explosive nitroglycerin decomposes rapidly upon ignition or sudden impact according to the following balanced equation: 4C3H5N3O9 (l) --> 12 CO2 (g) + 10H2O (g) + 6N2 (g) + O2 (g)
If you used 8400 kilojoules you expend in energy in one day to heat 50,000 g of water to 20 degrees C, what would be the irse in temperature? What would be the new temperature of the water?
toluene c7h8 is used in the manufacture of explosives such as tnt trinitrotoluene. a 1.500 g sample of liquid toluene
Describe the bonding in SeO2 in valence bond terms. Note whether or not there is delocalized bonding and explain how molecular orbital theory can be useful here.
The enthalpy of hydration associated with anhydrous LiI forming LiI?2H2O is -45.53 kJ/mol. The enthalpy of solution for LiI?2H2O is -14.77 kJ/mol. What is the enthalpy of solution for LiI
Consider all constitution isomers where nitrogen is part of a 5membered ring. What are the minor resonance forms for these structures
A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 . The initial concentrations of Ni2 and Zn2 are 1.80 and 0.130 , respectively.
Calculate the mass of ethylene glycol, C2H6O2 , that must be added to 1.000 kg of ethanol, C2H5OH, to reduce its vapor pressure by 13.2 torr at 35°C. The vapour pressure of pure ethanol at 35°C is 1.00 x 10 -2 torr.
Baking soda (NaHCO3) can be made in large quantities by the following reaction: NaCl + NH3 + CO2 + H2O ---> NaHCO3 + NH4Cl If 9.41g of NaCl reacts with excesses of the other reactants and 3.81g of NaHCO3 is isolated, what is the percent yield of t..
A mixture of O2, CO2, and N2 has a total pressure of 762. torr. In this mixture the partial pressure of O2 is 112. torr and the partial pressure of CO2 is 185. torr. What is the partial pressure of the N2 (in torr)?
With a mixture containing metal cations Cu (+2 charge), Cr (+2 charge), and Fe (+3) charge, all of which are attached to a NO3 ion.
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