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A carless chemistry student pours 200 grams of methanol, a flammable substance into the sink. Another careless chemistry student causes the bad situation to get even worse by dropping a lit match into the sink. The metanol burns completely with 300 grams of oxygen from the air.
A.) approximately what mass, in grams, is converted into energy? (I'm confused on how to justify this because the mass could be anything)
b.) What is the mass of the products in this chemical reaction?
c.) Approximtely what mass, in grams, is converted into different forms of matter?
A chemistry handbook lists the solubility of sodium Iodide as 184 grams per 100mL of water at 25 degrees celsius. How many moles of NaI can be dissolved in 100mL of water at 25 degrees celsius?
A mixture of acetone and toluene is boiled at 60 C and at 760 mm Hg. What is the ratio of acetone to toluene in the vapor phase?
Depict the skeletal structure of the major organic product resulting from the reaction of 2-methylbutane with Br2 in the presence of light and heat
A sample of an ideal gas at 0.93atm and 25oC occupied a volume of 17.3L. This gas was transferred to a 3.7L container without a temperature change. What was the pressure of the gas under the new conditions
Calculate the equilibrium value of Pb+2(aq) in 1.00 L of saturated PbCl2 solution to which 0.250 moles of NaCl(s) has been added. Assume that no volume change occurs.
The specific heats of ice and water are 2.09 and 4.184 J/g.°C, respectively. The heat of fusion for water is 334 J/g.
A closed container is filled with oxygen. The pressure in the container is 385kPa. What is the pressure in millimeters of mercury
already have a solution that contains 10 mmol of acetic acid. how many millimoles of acetate will you need to add to this solution? the pKa of acetic acid is 4.74
a 0.500 l solution of 7.50 m hydrochloric acid is used to neutralize a 250.0 g sample of calcium hydroxide. calcium
2Hg+2 + N2H4 ------> 2HG + N2 + 4H+ If 13.52 grams of mercury if formed. If you had 135.0 ml of Hg+2, what was the original concentration of Hg+2
What was the initial temperature of the Cu metal If the final temperature of the Cu-H 2 O mixture was at twenty five degree celsius? (The specific heat of copper = 0.377 J/(g°C).)
The steam is comes out of the feed water at 200 C. The water at a flow rate of 500 kg/h enters the feed water heater at 20C. Calculate the feed water exit temperature.
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