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how many grams of potassium bromide are required to prepare 350 mL of a .200 M solution?
Determine what concentration of OH - is needed to dissolve 0.015 mol of Zn(OH) 2 zinc hydroxide in a liter of solution
What mass of Au is produced when 18.6 ampere of current are passed through a gold solution for 29.0 minutes.
How much heat in is evolved or absorbed in the reaction of 2.28 grams of sodium ( Na) with water( H 2 O), express your answer in kilocalories?
Sodium atoms(Na) emit light with a wavelength(λ) of 330 nano meters when an electron moves from a state of 4 p orbital to a state of 3 s orbital now you just need to determine the energy difference between the orbitals.
Why can't i reduce carboxylic acid using sodium borohydride while lithium aluminium hydride can do the same thing.
What volumes of the stock solution will you have to pipet into the flasks to prepare standards and What mass of gas does the container contains If the volume of a container
Determine the final concentration if A 129 mL portion of that solution is diluted using water of 149 mL.
Calculate percent recovery of panacetin from the individual masses of its mictures, sucrose (.044g), aspirine (.093), and the unknown (.339).
mixture of the same bromoalkanes, and they both undergo hydroboration/oxidation to give a mixture of the same alcohols. Determine What is the structure of B?
Find the volume of a molar solution and What volume of a 2.00 molar solution of sulfuric acid, H 2 SO 4 , is required to react with 250.0g of magnesium carbonate, MgCO 3 , according to the following equation?
Determine the mass of H 2 O in the flask and it's the true volume at 20° C?(at 20°C the Density g/mL=0.9982071,20°C the volume of 1g of water (mL) corrected for buoyancy is 1.0029 )
Compute delta Hf for CaC2 : CaC2 + 2H2O-->Ca(OH)2 +C2H2 From the given enthalpy of reaction data as water(H2O) =(2*-285.83),calcium hydroxide Ca(OH)2=(-986.2) , AcetyleneC2H2 =(226.77)?
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