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A solution which is 0.10 m in NaCl(aq) has the same equilibrium vapor pressure as a solution which is 0.10 m CaCl2(aq)
calculate the moles of silver bromide and magnesium nitrate produced by 85 mol of magnesium bromide reacting with silver nitrate.
A gas of unknown molar mass was allowed to effuse through a small opening under constant pressure conditions. It required 184 s for 1.00 L of this gas to effuse.
To determine the enthalpy change for this reaction, 0.158 g of Mg metal is combined with enough HCl to make 100.0 mL of solution in a coffee-cup calorimeter of negligible heat capacity.
a toothpaste contains 0.24% by mass sodium fluoride, NaF and 0.30% by mass of triclosan, C12H7Cl3O2. The mass of one toothpaste is 119g. How many moles of C atoms are in the toothpaste.
A 1.0 L buffer solution is 0.250 M LiC2H3O2 and 0.050 M HC2H3O2 . Which of the actions will destroy the buffer? (a)adding 0.050 moles of LiC2H3O2(b)adding 0.050 moles of HCl(c)adding 0.050 moles of HC2H3O2(d)adding 0.050 moles of NaOH.
120.0 mL sample of a 0.81 M H2SO4 solution is diluted with enough water to reduce the concentration of the solution to 0.50 M. What is the volume of the diluted H2SO4 solution.
As food manufacturers add vinegar to food preparations to make them tart, rather than pure acetic acid,
Complete the following reactions and state the dominant mechanism where indicated 3-chloro - 2,2-dimethylbutane + NH3
In molecular orbital theory: 1. What is a bonding orbital and how does it impact the strength of a bond? 2. What is an antibonding orbital and how does it impact the strength of a bond
The feed to reactor contains only C 2 H 4 and HBr. if the molar flow rate = 165mol/s, compute the fractional conversion of the limiting reactant?
From the first and second laws of thermodynamics, derive the equation for the criterion of spontaneity of a process, Gibbs free energy,
Ethanol (molar mass = 46 g/mol) can be dehydrated to yield ethene (molar mass = 28 g/mol) by heating it with an excess of concentrated sulfuric acid (acting as a catalyst).
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