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If all of the below solutions are 0.5M in each of the compounds, what is the concentration (M) of each ion in solution?
a. Ni(NOsub3)sub2(aq) and CaClsub2(aq)
b. Ksub2COsub3(aq) and MgIsub2(aq)
Two samples of sodium chloride were decomposed into their constituent elements. One sample produced 2.84 g of sodium and 4.37 g of chlorine
Titration of 80 ml of unknown concentration of H3PO4 requires 126ml of 0.128M KOH. What is the concentration of H3PO4?
Justify your answer by calculating the changes in the vapor pressure of pure water vs. salty water at 100 °C. Assume you add 100.0 g of salt to 1.00 liter (1000 mL) of water. Vapor pressure of pure water is 760 mmHg. Assume density of water as 1 g..
proportional only to the numbers of hydrogens that give each product when substituted for by chlorine. What would be the relative yield of each product?
A certain compound is made up of three chlorine atoms, one phosphorus atom, and one oxygen atom.
A chemist burns 160 g of aluminum in oxygen to produce aluminum oxide. She produces 260 g of aluminum oxide. Write a balanced equation and calculate the theoretical yield and percent yield.
Determine the magnesium content (in ppm) of a 100.00 mL sample of drinking water if the following data were obtained. Titrant is 0.0481 M EDTA, 12.78 mL were used when an aliquot of the sample was at pH 13.0
What is the Total Ionic Equation for:2Al + 2KOH + 6H2O = 2KAl(OH)4 +3H2
a student determined the mass of a product, KCl to be 12 g. Calculate the number of particles produced.
Titration of the newly freed EDTA required 24.6 mL of 0.0220 M Ca2 . What were the molarities of Cd2 and Mn2 in the original solution?
NH4CO2NH2(s)->2NH3(g) +CO2(g) (at equilibrium) starting with only the solid it is found at 40C the total gas pressure is 0.363 atm calculate equilibrium constant Kp
Lithium will react with oxygen in a pressurized container to produce solid lithium oxide at 25°C. if 0.130 g Li(s) is placed in a 0.500 L container filled with oxygen at 1.90 atm
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