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Why must Group IV be treated with (NH4)2CO3 in basic solution? What would happen if the solution were acidic when the sodium carbonate was added?
What is the percent hydrogen (H) by weight of a solution containing 53.5mL of CH3COCH3? The density of acetone is 0.788 g/mL.
The concentration of Fe2+ in a sample of water is 350 mmol/L At what pH will 99% of the Fe2+ be precipitated as Fe(OH)2? Ksp = 7.9 x 10-15
An empty 2.00 L flask at 250.°C was filled with PCl5(g) to a pressure of 0.249 atm, and then the PCl5 was allowed to decompose as shown below.
What is the purpose of Sodium phosphate dibasic when used to make ethanol via fermentation?
the water solubility of L-alanine is 127g/L at 25 degrees celsius, what is the water solubility of D-alanine at 25 degrees celsius?
Determine the pH of a 0.62 M NH4NO3 solution at 25°C. The Kb for NH3 is 1.76 × 10-5.
If it takes 526 J of energy to warm 7.40g of water by 17°C, how much energy would be needed to warm 7.40g of water by 55°C
If the chemist mistakenly makes 275 mL of solution instead of the 200 mL, what molar concentration of sodium nitrate will the chemist have actually prepared?
determine the amount of heat required to convert 2.3 mol of ice at -13.1 degrees celcius to liquid water at 21.6 degrees celcius.
The freezing point of the solution decreases by 0.905 ° C compared to that of the pure solvent. What is the molar mass of the unknown solid. The freezing point depression constant for benzene is 5.46° C/m.
Write the reactions for the preparation of the diaonuim salt for the coupling of the salt with the sodium salt of 2-napthol. 2. Write the reaction of the sodium salt of para red when treated with 1 M H2SO4. Why does a precipitate form?
Determine What is the final concentration and calculate what is the Ksp of this salt at temperature of 25 degrees Celsius?
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