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If Bromine has two naturally occurring isotopes .The average mass of bromine is 79.904 u. If 50.54 % of bromine is found as bromine 79(78.9183), Define what is the mass of the other isotope.
An ideal gas flows through a horizontal tube at steady state. no heat is added and no shaft work is done.the cross sectional area of the tube changes with length and this causes the velocity to change
Use Hess's law and the measured mean enthalpy changes for the NaOH-HCl(36.2) and NH3-HCl(31.9) reactions to calculate the enthalpy change to be expected from the reaction: NaOH + NH4Cl----NaCl + NH3 +H2O
The Ksp of magnesium carbonate, MgCO3, is 6.82 × 10-6. Calculate the solubility of this compound in g/L.
On hot days, you may have noticed that potato chip bags seem to inflate even thougt they have not been opened. if i have a 250 mL bag at a temperature of 19 C and i leave it in my car that has a temperature of 60 C, what will the new volume of the..
Write a nuclear equation to describe the spontaneous fission of 244 Am 95 to form I-134 and Mo-107. Determine how many netrons are produced in the reaction
Show the overall reaction of racemic 3-bromohexane from (E)-3-hexene by entering the structures of the products and reactants in the template provided. (E)-3-hexene (S)-3-bromohexane (R)-3-bromohexane
How far will the protein travel in one hour in an electrophoresis gel at 25C when a field of 1.0 V cm^-1 is applied if the viscosity of the gel is 0.891 cP
Lakes that have been acidified by acid rain can be neutralized by the addition of limestone (CaCO3). How much limestone in kilograms would be required to completely neutralize a 5.2 x 109 L lake containing 5.0 x 10-3 g of H2SO4 per liter
What is the rate constant of a first-order reaction that takes 8.50 minutes for the reactant concentration to drop to half of its initial value?
consider the second-order decomposition of nitroysl chloride2noclg rarr 2nog cl2gat 450 k the rate constant is 15.4
Consider the titration of 30 mL of .025 M NH3 with .025 M HCl. Calculate the pH after the following volumes of titrant have been added.
Explain why is the lattice energy of potassium bromide more exothermic than the lattice energy of rubidium iodide
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