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Liquid mixtures of sodium and potassium are used in some nuclear reactors as coolants that can survive the intense radiation inside reactor cores. Calculate the energy required as heat to melt 250 kg of sodium metal at 371 K.
Do these lambda maxs indicate an increase or a decrease in the energy of the light absorbed as the number of EN ligands bound to Cu(II) increases
A 275 mL sample of vapor in equilibrium with 1-propylamine at 25.0C is removed and dissolved in 0.500L of H2O.For 1-propylamine, pKb= 3.43 and the vapor pressure = 316 torr.
One mole of an ideal gas is subjected to the changes below. Calculate the change in temperature for each case
how to calculate mole fractions of two sustances given their weight percentages ,grams
A Ni(II) coordination compound with an octahedral arrangement of ligands has been synthesized containing only water and ammonia as ligands and chloride as counterions. From the following data, determine the exact formula of this compound.
what is the final volume of a 400 ml gas sample that is subjected to a tempature change from 22 degrees celcius to 30
Calculate the molar solubility of CaCO3 ( Ksp = 4.5*10-9) neglecting the acid-base character
The molecular mass of an unknown compound was determined by measuring the freezing point depression of an aqueous solution of the compound
sulfate dissolves as follows: Na2SO4(s) → 2Na+(aq) + SO42- (aq). How many moles of Na2SO4 are required to make 1.0 L of solution in which the Na concentration is 0.10 M?
if 100. ml of 1.60 m na2so4 is added to 200. ml of 2.40 m nacl what is the concentration of na ions in the final
the two amino acids, glycine and alanine, can form two different dipeptides. Draw one of the possible dipeptides as it would appear at a pH of 7. Be sure to include any necessary nonzero formal charges in your drawing
garlic smell is easily noticable due to the compound that is responsible for this is allicin when we analysed this
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