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Hydrogen and oxygen gas combine explosively to produce water. Write a balanced chemical equation for this process. If 10 mol of hydrogen reacted with oxygen, what volume of liquid water could be produced?
A nugget of pure gold of 4.90 grams absorbed heat of 270 Joules. determine the final temperature of the Au if the initial temperature = 22.0°C? specific heat of Au =0.129 J/(g·°C).
Given stock solutions of glucose (1M), asparagine (100 mM), and NaH2PO4 (50 mM), how much of each solution would you need to prepare 500 mL
what is the proper technique to measure the temperature of a liquid in a beaker with a thermometer?
How many grams of P2O5 gas are present in a 750 ml container that is at 75 degrees C and at a pressure of 590 mm Hg?
 What is the pH of the acidic solution before titration? 4.  What is the pH of the reaction mixture after 10.0 mL of NaOH was added?
The standard voltage of the cell Ag(s) | AgBr(s) | Br (aq) || Ag +(aq) | Ag(s) is +0.73 V at 25 ?C. Calculate the Ksp for AgBr.
After allowing the solution to sit for 30 minutes the student determines that the bromide concentration was [Br-]= 0.0012 M. What is the Pb2+ concentration?
Calculate the de Broglie wavelength for each of the following.a 57 g ball with a velocity of 35. m/s b an electron with a velocity 12% the speed of light.
What quantity of heat is required to vaporize 151 g. of benzene C6H6 at its boiling point 80.1 degrees celsius? Heat of vaporization = + 30.8 kj/mol.
determined its current level of YAN to be 120 ppm N. If each gram of DAP adds 0.21 gram of N to the must, how much DAP is needed?
what color will the solution appear? If 0.100 M NaOH is slowly added to the HCl sample, in what pH range will the indicator change color?
A 180 kiln is used for vitrifying ceramics. It is currently operating at 1025 , and the pressure is 1.100 . How many moles of air molecules are within the confines of the kiln.
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