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2NH4Cl(s) + Ba(OH)2 * 8H20(s) = 2NH2(aq) + BaCl2(aq) + 10H2O(l)
Explain the Delta H for this reaction is 54.8 kJ. Explain how much energy would be absorbed if 27.1 g of NH_4Cl reacts?
gravimetric determination of sulfateba2so42-rarr baso41 how is the sulfate precipitated?2 what method is employed to
A student sets up two reactions. Reaction 1 uses 0.170 mole/L of reactant, and Reaction 2 uses 0.460 mole/L of reactant. How many times faster is Reaction 2 compared to Reaction 1
When 1.926 g of succinic acid was dissolved in water and titrated, 65.20 mL of 0.5000M NaOH solution was required to neutralize the acid. How many acidic hydrogens are there in a molecule of succinic acd
the standard enthalpy of formation of brf3g is -79.0 kjmol. the standard enthalpies for the atomization of br2l and
Determine the volume of oxygen gas required to completely combust 3.5 mol of propane in a bbq at standard pressure and 28.0C
What IR stretches (and ranges) will occur in? What IR stretches (and ranges) will occur in an aldehyde, but not an alcohol or ketone and IR stretches (and ranges)
Calculate the potential of a galvanic cell with two platinum electrodes, the one immersed in a solution that is .0301 M in \(Fe^{3+}\) and .0760 M
A student constructs a galvanic cell that has a strip oflead metal immersed in a solution of 0.1M Fe(NO3)2 as one half-cell and a strip of zincmetal immersed in a solution of 0.1M Zn(NO3)2 Which half-cell is the cathode
If 21 mL of 6.0 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid?
A0.4324 g sample of a potassium hydroxide-lithium hydroxide mixture requires 28.28 ml of 0.3520 M HCl for its titration to the equivalence point. What is the mass percent lithium hydroxide in this mixture?
A buffer consists of a weak acid and its conjugate base. For the following pairs, indicate which is the acid and which is the base:
calculate deltas if 1 mol of liquid water is heated from 0.00degrees c to 10 degrees c under constant pressure if cpm
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