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In the laboratory you are asked to make a 0.179 m magnesium acetate solution using 400 grams of water. How many grams of magnesium acetate should you add?
Given that the N triple bond energy in N2 gas is 941 KJ/mol and that the O double bond in O2 gas is 494 kJ per mole, calculate the no bond energy in No and ONO
It takes 46.8 hours for nitrogen-filled balloon to shrink to a quarter of its original volume by effusion though a very small hole. If the same balloon had been filled with helium,
You measure 50,000 decays of a radioactive sample in 20 seconds. You measure the same sample 50 days later and observe only 10,000 decays in 20 seconds. What is the half life of the radioactivity
Complete and balance the following redox equation that occurs in acidic solution using the set of smallest whole-number coefficients. What is the sum of all the coefficients in the equation
Phosphorous acid, is an important compound in industry and agriculture, H3PO3(aq), is a diprotic oxyacid .determine the pH for each of the following points in the titration of 50.0 mL of a 1.5 M H3PO3(aq) with 1.5 M KOH(aq).
carbohydrates that comprises a balanced diet in different body types. What are the effects of the consumption of each of these on the human body.
Lewis Structure for a Nitrate Ion (NO3-1). How many possible resonance structures are there for the nitrate ion
Estimate how long it will take for the bleach molecules to diffuse through the extent of the room, assuming that the bleach bottle is in the center of the room, and the room is perfectly square, and is a 10 foot x 10 foot room.
suppose that the volume of a particular sample of Cl2 gas is 8.70 L at 895 torr and 24 Celsius, what volume will the Cl2 occupy at STP
Calculate the molecule weight of the liquid If 2.31grams of the vapor of a volatile liquid is able to fill a 498-ml flask at temperature of 100 degree Celsius and pressure of 775 mm Hg? also determine the density of the vapor under these conditi..
If a sample of pure silver (Ag) contains 3.35 x 1022 atoms of silver, how many moles of silver are in the sample?
A laser pulse with wavelength 555 contains 4.40 of energy. How many photons are in the laser pulse?
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