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0.50g of Cu 2+ is dissolved in 4.0ml of 16 M HNO3. how much 3.0 M NaOH must be added to precipitate the Cu 2+ as Cu(OH)2
Can someone help me solve the problem below? ? for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value
How many collisions does a single Ar atom make in 1.0 s when the temperature is 25 C and the pressure is (a) 10 bar, (b) 100 kPa, (c) 1.0 Pa
Assume that the density of the mixed solutions is 1.00 g/mL, that the specific heat of the mixed solutions is 4.18 J/(g celcius), and that no heat is lost to the surroundings. The deltaHrxn for the neutralization of NaOH with H2SO4 is -114 kJ/mol ..
Laboratory-grade diethyl ether contains small amounts of ethanol (1-2%). Is this grade of solvent suitable for the preparation
Substrates and reactive groups in an enzyme's active site must be precisely aligned in order for a productive reaction to occur. Why, then, is some conformational flexibility also a requirement for catalysis
N2O4 + 2 N2H4 = 3 N2 + 4 H2O Determine the Limiting Reactant and the mass in Grams of Nitrogen that can be formed from 50.0g N2O4 and 45.0g N2H4. The molar masses are: N2O4=92.02G/mol and N2H4=32.05G/mol.
determine how do you know if there must be a precipitate or not and Show whether or not a precipitate will form if The Ksp of PbI2 =9.8×10-9
Rutherford fired positively charged particles at metal foil and concluded that most of the mass of an atom was..a) in the electrons.
A 30.5-g sample of an alloy at 93.0°C is placed into 50.0 g of water at 22.0°C in an insulated coffee cup with a heat capacity of 9.2 J/K.
A 100-watt lightbulb radiates energy at a rate of 100 J/s.(The watt, a unit of power, or energy over time, is defined as 1 J/s.) If all of the light emitted has a wavelength of 525 nm, how many photons are emitted per second
The silicon in the plate is a mixture of naturally occurring isotopes. One of the those isotopes is silicon-30, which has an atomic mass of 29.97376 and a percent natural abundance of 3.10.
How do you make a supersaturated solution. How is this different than a "saturated" solution
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