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It is estimated that uranium is relatively common in the earth's crust, occurring in amounts of 4g/metric ton. A metric ton is 1000 kg. At this concentration, explain what mass of uranium is present in 1.2 mg of the earth's crust?
Calculate the fractional concentration (Y) at an initial protein concentration of 1.3x10*-6 M and an initial ligand concentration of 1.8x10*-6 M
Hydrogen fluoride is a highly reactive gas. It has many industrial uses, but the most familiar property of HF is its ability to react with glass. As a result, HF is used to etch glass and frost the inner surfaces of light bulbs.
the following compound hcn has aone sigma and three pi bonds btwo sigma and two pi bonds cone sigma and one pi bond
How much ammonium hydroxide is needed to react completely with 75.0g of copper (2) nitrate in a double replacement reaction.
A container filled with 3.47 kg of water underwent a temperature change from 23.20 oC to 28.42 oC. How much heat, measured in kilojoules, did the water absorb
You then take 0.1657 g of pure reagent from bottle A, dissolve it in 100.0 mL of water, and titrate it in a precipitation titration against 0.0424 M Ba2+. The volume of Ba2+ required to reach the endpoint is 22.40 mL. What is the calculated molar ..
determine How many formula units(formula un) of sodium iodide(NaI) are present in 9.54 grams of this compound and also calculate how many gms of sodium iodide are present in 6.07E+21 formula units of this compound.
Calculate the pH of a buffer solution that contains 0.10 M NaH2PO4 and 0.50 M Na2HPO4. The Ka of H2PO4- is 6.3 x 10-8 Question options: 1) pH = 7.90 2) pH = 6.50 3) pH = 7.60 4) pH = 6.80
A sample of 0.368 mol of a metal M reacts completely with excess fluorine to form 28.7 g of MF2. what element is represented by the symbol M?
Why does the cyclohexane chair confirmation have a point group of D3d. It's hard for me to see the principal axis of C3.
How does bright light differ from dim light of the same color in terms of photons
A particular x-ray has a wavelength of 1.6 Å. Calculate the energy (in J) of one photon of this radiation. J
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