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Calculate the temperature change which will be caused by the following process: 0.640 moles of NH4Cl are dissolved in 1.00 L of water.
What volume of pure O2(g), collected at 27°C and 746 torr, would be generated by decomposition of 128 g of a 50.0% by mass hydrogen peroxide solution?
The accompanying drawing shows 4 water molecules interacting with glycine. Four dotted lines are labeled with numbers 1 through 4. As labeled by these numbers, which of the dotted lines could represent hydrogen bonds?
Write a detailed mechanism for this reaction that accounts for the net retention of detailed mechanism for this reaction that accounts for the net retention of configuration when Ag+ and a low concentration of hydroxide are used.
how much energy is needed to heat 24.8g water from 64 degrees to 123 degrees celsius?
What is the final pH of a solution that contains 0.1 M of H2N-CH2-CH2-NH3+ Cl- and 0.01 M of Cl- NH3+-CH2-CH2-NH3+. The pKa values of the compound are as follows; pKa1= 7.5 and pKa2= 9.5:
How many grams of the solid can be formed from 268 g of calcium nitrate and 115 g of phosphoric acid?
At room temperature (about 20degree C) milk turms sour in about 64 hours. In a refrigerator at 3 degree C, milk can be stored for about three times as long before turning sour.
if a 50.0 liter container holds 45 moles of a gas at a temperature of 200 C what is the pressure inside the container
how many grams of sucrose C12H22O11 must be added to 522g of water to give a solution a vapor pressure 2.0mmHg less than that of pure water at 20 degrees celsius
What volume will nitrogen gas occupy if the pressure is increased to 894 torr at constant temperature?
A 13.4-g sample of CaCl2 is dissolved in 109 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution
A sample of ethanol (C2H5OH) has a mass of 38.6 g. How many carbon atoms does the sample contain?
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