Determine the numbers of micrograms
If the Cu (NO3)2 solutions contains about 6gCu2+ per liter, determine the numbers of micrograms of Cu2+ion are there in one spot? In an experiment, it takes about 10microliters of solution to form a spot 1cm in diameter.
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The amount of carbon-14 remaining in the sample which weighs D is given by X(t)=D(0999879)^t where t is time in years. If tests on the fossilized skull reveal that 99.97% of the carbon-14 has decayed, how old is skull.
Calculate the atomic radius of gold if it crystallizes in a face-centered lattice and which is having a density of 19.4g/cm^3
Explain how variation in inter-arrival times provides rise to delays.
If the heat released during condensation goes only to warming the iron block, determine the final temperature in Celsius of the iron black? Assume that 0.88 of water condenses on a 75.0-g block of iron that is initially at the 22 degrees Celsius.
You have 6 grams of molecule X in 100 mL water. The solubility of molecule X in ether is 200 g/L. The solubility of molecule X in water is 70 g/L. Determine how much of molecule X will be acquired by extracting the water solution once with 100 m L
Determine the difference in slope of the chemical potential against a temperature on either side of (a) the normal boiling point of water (b) the normal freezing point of water
Identify the radioactive decay constant of CS-137 (1/2 life=30.07yrs).Determine the activity in units of Becquerel's and curies for a sample which is having 2x10^18 atoms.
The equilibrium-constant expression for a gas reaction is Write down the balanced chemical equation corresponding to this expression.
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When people get involved in community and social change but do not hold official political positions, which of the terms best describes what they are part of
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