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Explain while sodium metal comes into contact with water, hydrogen bubbles out of the solution presenting a potential fire hazard
2 Na(s) + 2 H2O ? 2 NaOH(aq) + H2(g)
Compute the mass of hydrogen gas produced by adding 20 g of sodium metal to excess water.
A sample of H2O with a mass of 46.0 grams has a temperature of -58.0C. How many joules of energy are necessary to melt 46.0 grams of ice.
Which of the following intermediates is present in the acid-catalyzed hydrolysis of t-butyl ethanoate but not in the acid-catalyzed hydrolysis of methyl ethanoate
At 20 degrees C, the vapor pressure of ethanol is 45 torr and the vapor pressure of methanol is 92 torr. What is the vapor pressure at 20 degrees C of a solution by mixing 27.0 g of methanol and 75.0 g of ethanol?
Write the mechanism for the formation of 4-chorobenzanilide from the coimbination of the following reactants Carbon tetrachloride, 4-Chlorobenzaldehyde, Benzoyl peroxide, Aniline
Find the volume (mL) and pH of 0.0588 M KOH needed to reach the equivalence point(s) in titrations of the following. (a) 20.8 mL of 0.0376 M HNO2 (b) 14.8 mL of 0.104 M H2CO3 (two equivalence points so both the first and second volumes and pHs are re..
In an electrolysis cell similar to the one employed in this experiment, a student observed that his unknown metal anode lost 0.238 g while a total volume of 84.90 mL of H2 was being produced
carbon oxide carbon ii oxide can be purified of oxygen impurities by having it react with cobalt ii oxide. if the
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.120 M HCIO (aq) with 0.120M KOH (aq)
If a system has 2.50 × 102 kcal of work done to it, and releases 5.00 × 102 kJ of heat into its surroundings, what is the change in internal energy of the system
What is the flow rate, m3, of the gasoline and kerosene stream coming off the first column? 2 - What is the composition of m7, the heating oil and lubricating oil stream coming off the second column?
A 2.18-L flask is filled with propane gas (C3H8), at 1.00 atm and -16.0°C. What is the mass of the propane in the flask?
Identify the steric number, shape, hybridization about the central atom and molecular polarity of sulphuryl chloride, SO2Cl2.
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