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Aniline () is an organic base used in the manufacture of dyes. Calculate the in a 0.12 solution of aniline ().
calculate the sodium ion concentration in a solution formed by diluting 35.00 mL of a .585 M sodium phosphate solution to a final volume of 145.00 mL
Assuming levels of atmospheric CO2 are 390 ppm CO2, what is the pH of rainwater in equilibrium with the atmosphere for the estimated future atmospheric CO2 concentration of 780 ppm,v.
P4(s) + F2(g)-> PF3(g) What mass of F2 is needed to produce 187 g of PF3 if the reaction has a 80.1% yield?
reacts with excess Mg to produce 4.20L of H2 gas at 745 mmHg pressure and 35 degrees celcius. What is the molarity of the HCl solution?
Convert ethanol to 2-butanol using any series of reactions and inorganic reagents
one mole of silicon si has a mass of 28.086 g and one mole of carbon has a mass of 12.011 g. what is the massof one
A quantity of ice at 0.0 degrees C was added to 33.6 of water at 21.0 degree C to give water at 0.0 degrees C. How much ice was added?
Copper metal has a specific heat of 0.385 J/g·°C. Calculate the amount of heat required to raise the temperature of 22.8 g of Cu from 20.0°C to 875°C.
Which one of the following is the highest temperature?
8.0 mL of 10.0 ppm fe 2+ solution is diluted to 100.o ml. What is the concentration (in ppm) of the resulting solution?
At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced?
When 125 grams of a solution was evaporated to dryness, 42.3 grams of solute was recovered. What was the percentage of solute
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