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Question- At a distance of 32ft , an ionizing radiation source delivers 5.5rem of radiation. How close could you get to the source and still have no biological effects?
Please show me how work it out above problem
what mass of the hydrate could be recovered from the solution? when separated from a h2o solution copper sulphate forms
Calculate the molality of a 20.0 per cent by weight aqueous solution of NH4Cl. (Molecular weight: NH4Cl = 53.5) (b) If this NH4Cl solution is assumed to be ideal and is completely dissociated into ions, calculate the vapor pressure of this solutio..
With the pure solvent in the light path, the meter reading is 78; with a 0.1 M solution of a solute in the same solvent, the meter reading is 55. The light path is 0.5 cm. Calculate the absorbance, the transmittance, and the molar absorption coeff..
How many moles of O2 are needed to consume 0.52 mol of Mg in the following unbalanced reaction? Mg plus O2 -> MgO
Carbon-carbon single bonds in organic molecules have energies about 350 kj/mol. What is the corresponding wavelength.
calculate the heat released when 2.58 l of cl2g with a density of 1.88 gl reacts with an excess of sodium metal at
Calculate the number of photons emitted in one second by a 13 W laser operating at a wavelength of 400.0 nm. photons
suppose 321 grams of methylamine (CH3NH2) and 332L of oxygen gas are mixed together in the reaction below at STP. how many grams of water should be prouduced?
Problem- Arrange the oxides in each of the following groups in order of increasing basicity- K2O Al2O3, BaO. Explain how you figured this out.
Aniline is basic good electron pair donor. Acetanilide, nevertheless is neutral/not basic. Use structural formulae and resonance to explain this difference in basicities.
Find out the pH of a solution that results from mixing 100 ml of 0.10 M acetic acid with 75 ml of 0.08 M NaOH.
Separation of a standard solution containing 207 mg of pentanol and 233 mg of 2,3-dimethyl-2-butanol in 10.0 mL of solution led to a pentanol:2,3-dimethyl-2-butanol relative peak area ratio of 0.920:1.00. Calculate the response factor, F, for 2,3-..
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