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You have 500 mL of a 5.0 M solution of nitric acid HNO3 (63.01 g /?mol) dissolved in water. How many grams of nitrogen does the solution contain?
Calculate the rate at each time interval & average rate for the reaction and determine the rate of each time interval, and then calculate the average rate for the reaction in terms of [H 2 O].
I dissolved .5 grams of mustard in 3 mL of distilled water. I was asked to determine the mass percentage of acetic acid in mustard, so I added 2.5 mL of NaOH to turn the mustard solution red.
Determine how long will it take for a sample of N2O5 to decay to sixty percent of its initial value?
A scientists places 4.00 moles of Argon, Ar (g) and 2.00 moles of Helium, He (g) into a flask at the temperature of 298 Kelvin and measures the pressure to be 3.00 atm. calculate the pressure due to Helium gas?
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.
72.0 mL of a 1.60 M solution is diluted to a volume of 268 mL. A 134-mL portion of that solution is diluted using 139 mL of water.
Find out the molar mass of each of the given gases 1) 2.16 grams of a gas that occupies 1.38L at 665 mmHg
A mixture of twenty five grams of potassium nitrate(KNO3) and two grams of CuSO4*5H20 with 11.5 grams of water at 100 degree celcius temperature, 15 g ramsof water are mixed.
Many gases are shipped in high-pressure containers. Consider a steel tank whose volume is 65.0L and which contains O2 gas at a pressure of 16,500kPa at 23°C.
Water (2290g ) is heated until it just begins to boil. If the water absorbs 4.99×10^5J of heat in the process, what was the initial temperature of the water.
If a nonvolatile, yellow crystalline solid sample of 0.351 g is dissolved in benzene (C 6 H 6 ) of 15.8 g formed a solution. this solution freezes at the temperature of 4.77 degree celsius.
The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 130J of heat. As it expands, it does 76kJ of work. What is the change in internal energy for the system?
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