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Problem- What volume of 0.1 M HCl solutions is needed to bring 50 ml of a 0.23 M ammonia NH3 solution to the stoichiometric point?
Explain each and every step in detail. I need proficient help in the above problems.
How many pounds of coal (of heating value of 10,000 BTUs per pound) would be needed to provide the 100 quadrillion BTUs if the efficiency of conversion to electricity was 35%? What fraction of the US coal reserves (estimated at 250 billion short t..
How many liters of carbon dioxide are produced when 5.00x10^23 molecules of oxygen react? How many grams of water are produced if 25.0 L of oxygen gas react?
The test tube contained some water (besides the metal) that was subsequently added to the calorimeter. Considering a higher specific heat for water, will the temperature change in the calorimeter be higher, lower, or unaffected by this technique e..
If the sign contains neon at a pressure of 1.78 at 38, how many grams of neon are in the sign
The rotation constant for H2 is 60.80 cm-1 the harmonic frequency is 4395.3 cm-1 and the anharmonicity constant is 117.90 cm-1. calculate the frequency at which the Q branch first overtone will be found.
The hydrogen atom now has a single electron in the 3d subshell. Calculate the energy (in kJ/mol) required to ionize this (excited state) hydrogen atom. This is the energy required to remove the electron completely from the atom
starting with ethyl ethanoate show the step-by-step mechanism for the base-promoted hydrolysis of the ester to form the
A 25.0 g piece of aluminum is dropped into a beaker of water. The temperature of the aluminum drops from 94 degrees C to 67 degress C. Explain what quantity of heat energy did the piece of aluminum give off
a sample of cl2 gas at a pressure of 645 mmhg is transferred to a new container having a volume one-third of the
A sample containing 15ug of Scandium Sc-45 is irradiated to where 0.01% of the atoms have captured a neutron and become Sc-46. Half life 831d. Explain what is the activity of the sample upon removal from the reactor and 45 days later
the water at the gas-collecting port is assumed to be 25c but it is actually 15c. how will this error affect the
Develop an argument based on bond enthalpies for the importance of SiO bonds in substances common in the Earth's crust in preference to SiSi or SiH bonds
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