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Copper has two naturally occurring isotopes,63Cu (isotopic mass 62.9396 amu) and 65Cu (isotopic mass 64.9278 amu). If copper has an atomic mass of 63.546 amu, what is the percent abundance of each isotope? it wants 2 answers one for Cu63 and the other for Cu65
A sample containing 4.80 g O2 of gas has a volume of 15.0 L. Pressure and temperature remain constant. What is the new voume if 0.500 mole O2 gas is added.
Draw the monobromination product that would be obtained from the radical bromination of methylcyclohexane? which product would obtained in greatest yield?
a sample containing 1.50 moles of neon gas has a volume of 8.00 liters. what is the new volume if 25.0g of neon is added.
How would this computed ? compare with the dimensions of a typical atom? (-1 if much smaller, 0 if about the same magnitude, +1 if much bigger)
For the reaction A --> B, the activation energy is Ea = 125 kJ/mol and the heat of reaction, H = 50 kJ/mol. What is Ea for the reverse reaction in kJ/mol?
Explain Net Ionic Equations and Balancing, These are only eight out of a fifty-three question hand out, but with eight answers to reference off of I think I'll be far more successful in my attempts at this.
A 15.0 ml sample of nitric acid solution is titrated with a 0.960 M barium hydroxide until the end point. Based on the titration data, the concentration of nitric acid is determined to be 3.18 M. Calculate the volume in milliliters of barium hydro..
A substance has a molar extinction coefficient of 2.4x104cm-1M-1 and an absorbance of 0.10 What is the concentration of this substance in a cuvette with a 1.0 cm path length.
if a raindrop weighs 65 mg on average and 5.1x10^5 raindrops fall on a lawn every minute what mass in kg of rain falls in 1.5 hours
A certain human gene was shown to have only 80% of its DNA sequence identical to that of an ape, but its corresponding protein sequence has 95% identity
a sample of nitrogen gas occupies 1.55 L at 27.0 C and 1.00 atm pressure. What will the volume be -100 C and the same pressure?
What mass of oxygen will be dissolved in the water? The temperature of the water is 58 C, KH (02)=.00141 M/atm, and the mole fraction of oxygen gas in .23
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