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0.05 g of a commercial sample of KClO3 on decomposition liberated just sufficient oxygen for complete oxidation of 20 ml CO at 27 oc and 750 mm pressure . calculate % KClO3 in sample.
A 0.32-mol amount of NH3 is dissolved in 0.47L of a 0.38 M silver nitrate solution. Calculate the equilibrium concentration of Ag(NH3)2+ and Ag+ and NH3
consider the following. this process would result in the formation of (a) a positive ion and negative ion (b) two neutral species (c) two radicals (d) two negative ions (e) a positive ion and a neutral species
How does the collision theory account for the dependence of rate on the concentrations of the reactants?
Compare the rate of effusion of NH3 with that of N2 at the same temperature and pressure. Compare the time required for equal numbers of moles of N2 and NH3 to effuse.
what is the volume of HCl gas required to react with excess magnesium metal to produce 6.82 L of Hydrogen gas at 2.19 atm and 308 K?
Hydrogen gas was cooled from 150C to 50 C. It's new volume is75 mL. What was it's original volume?
A 5.00 mL standard phosphate solution containing 45.0 mg of phosphate per liter is added to a second 2.00 mL sample and diluted to 100.0 mL. The absorbance of this solution is 0.506 at 700 nm. Calculate the concentration of phosphate in the origin..
mno4- is deep purple in aqueous solution while mn2 is colorless. suppose a solution of kmno4 is being used as a sample
The molar mass for NaCl and water are 58.443 g/mol and 18.015 g/mol, respectively. Calculate the partial molar volumes for NaCl and water in a 0.35m solution.
moles of H30+ or OH- must you add to 8.92 L of HA solution to adjust its pH from 4.34 to 5.09? assume a negligble volume change
1.given that nickelii perchlorate that is a polyatomic ion with the formula clo41- dissolving in water first of all
A 25.00-mL sample of an unknown H3PO4 solution is titrated with a 0.100 M NaOH solution. The equivalence point is reached when 52.58 mL of NaOH solution is added. What is the concentration of the unknown H3PO4 solution? The neutralization reaction..
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