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Explain how much volume of 63 percent w/w aq. HNO3 solution (d=1.5g/ml) is diluted with sufficient water to prepare 1L of 3M HNO3 solution?
Write the net ionic equation for the reaction that occurs when an aqueous solution of hydrochloric acid reacts with an aqueous solution of ammonia.and find delta H
Ammonia reacts with hypobromite, OBr-, according to the equation below. Find the molarity of OBr- is 13.35mL of solution reacts with 4.66mg of NH3 (molar mass = 17.03). 2NH3 + 3OBr- ----> N2 + 3Br- + 3H2O
30.82g of nitrogen will react with 17.60g,35.20g,70.40g or 88.00g oxygen to form four different compounds. calculate the mass of oxygen per gram of nitrogen in each compound
Dinitrogen pentoxide, N2O5, decomposes by first-order process with a rate constant of 3.7 x 10-5 s-1 at 298K. What is the half-life in hours for the decomposition of N2O5 at 298 K
In the combustion of propane for energy, how many kilojoules of heat are produced when 2 kilograms of propane are completely combusted in the presence of excess oxygen
A gas containing only CH4 and N2 is burned with air yielding a flue gas that has an Orsat analysis of CO2:8.7%, CO: 1.0%, O2:3.8%, and N2:86.5%. Calculate the percent excess air used in combustion and the composition of the CH4-N2 mixture.
Determine the percent yield for the reaction between 45.9g of NaBr and excess chlorine gas to produce 12.8g of NaCl and an unknown quantity of bromine gas.
Check all of the statements that are true for SO2. The domain geometry is trigonal planar. The molecular geometry is bent. The bond angle is 90 degrees
The molality of the solution is determined to be .0480m. What is the molar mass of the substance?
Calculate how many degrees of un-saturation the compound with the molecular formula C9H7O3N2S Cl4Br contains.
an analysis of drinking water found it to have 4.5 ppb parts per billion of arsenic. how many grams of arsenic are in a
A spherical water tank of radius R=4m is emptied through a small circular hole of radius r=.02m at the bottom. The top of the tank is open to the atmosphere. The instaneous water level h in the tank can be determined from the solution of the follo..
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