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Explain what is the pH of a 0.1M KAl (SO4)2 solution? Same? For 0.1M NaC2H3O2, 0.1M NH4Cl, 0.1M ZnCl2, 0.1MNa2HPO4?
0.1M KAl(SO4)2 - 3.5
0.1M NaC2H3O2 - 6.5
0.1M NH4Cl - 6.0
0.1M ZnCl2 - 2.5
0.1M Na2HPO4 - 9.5
What is the density (in grams per liter) of a gas mixture that contains 20.5% F2 and 79.5% He by volume at 793mm Hg and 28.5C
What would be the initial rate of formation of I3 (in units of M/s) when the following initial concentrations were used
Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction isZn2+(aq)+2e??Zn(s)
A solution is composed of ethanol and water. The solution density is 0.964 g/mL. The partial molar volume of ethanol and water is 52.0 mL/mol and 17.0 mL/mol respectively. What is the composition of liquid by mass
Provide something that would have a measurement of 50cc, 10.0cm, 5.0x104cm3, 500g, 25kg, 100m, 0.20L, 0.0001km, 1.0x109ug, 250,000mL, 75.0mm,1,000um. Q. How to compute my height of 5'0 into centimeters? And my weight into kilograms
The combination reaction of sodium metal and chlorine has to form sodium chloride is represented by the following balanced equation: 2Na(s) + Cl2(g) ? 2NaCl(s)
The heat of formation of liquid diatomic bromine is 0 kJ/mole. The heat of formation of gaseous diatomic bromine 30.9 kJ/mole. The heat of formation of gaseous monatomic bromine
Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 9.80 solution.
A 240.0 mL buffer solution initially contains 3.0×10-2 M of HCHO2 and 3.0×10-2 M of NaCHO2. What mass of the correct reagent should you add
You need to produce a buffer solution that has a pH of 5.38. You already have a solution that contains 10. mmol (millimoles) of acetic acid.
the reaction a->b=c is found to be a zero order. If it takes 4.3 x 10^2 secounds for an initial conventration of A to go from .50 M to .25 M, what is the rate constant for the reaction
Aluminum reacts with oxygen to make aluminum oxide. If 5.2 moles of aluminum react, how many moles of aluminum oxide are formed. Show work.
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