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A brown colored salt contains a cation from Group 3 (Fe, Mn, Ni). It has no reaction with concentrated H2SO4 and produces a soluble product with acidic AgNO3 and acidic BaCl2. This salt is not water soluble. What is the chemical formula for this salt?
The reaction X(s) ? X(g) is known at 25oC to have standard enthalpy, free energy, and entropy changes of 146.8 kJ, kJ, and 175.4 J/K. At what temperature (oC) does X(s) sublime?
during the late 1800s hard rock miners replaced candles with carbide lamps for work in mine shafts. the lamps worked by
Calculaw the concentration of hydroxide ions in stomach acid at body temperature. ([H3O^+]=0.10M)
The specific heat of liquid bromine is 0.226 J/g-K. How much heat (J) is required to raise the temperature of 10.0 mL of bromine from 25.00C to 27.30C? The density of liquid bromine: 3.12 g/mL
Draw the abbreviated structural formula of the products of the complete hydrolysis of lidocain.
What mass of solid sodium formate (of MW 68.01) must be added to 110 mL of 0.55 mol/L formic acid (HCOOH) to make a bu?er solution having a pH of 3.84? Ka = 0.00018 for HCOOH
How many mL of 5.0 M NaOH can be added before its buffering capacity is exhausted?
If somebody could please solve it and show the steps ill be forever grateful and will rate 5 stars. 1.) What is the change of energy when an electron of boron travels from the 4th energy level to the 2nd energy level
The Greek mathematician Archimedes is credited with discovering how to verify the amount of pure gold in an irregularly shaped object (e.g., a crown) by placing it in water.
A 60.00 mL sample of 0.075 M benzoic acid was titrated using 0.050 M KOH. What will be the pH at the equivalence point in the titration.
Determine How much Na2EDTA x 2 H2O must be weighed to form exactly two litres of 0.0500 M solution? FW=372.24
What volume is needed to obtain each of the following amounts of solute? Express the answer with the appropriate units
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