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How many molecules (not moles) of NH3 are produced from 7.99×10-4g of H2?
A gas mixture contains 1.30g N2 and 0.95g O2 in a 1.57-L container at 22 degrees Celsius. Calculate the mole fraction of N2.
Write a balanced radiochemical equation describing this process and the nuclide that forms. include all superscripts and subscripts representing mass and charge.
What volume of 5.00x10^-3 M HNO3 is needed to titrate 80.00 mL of 5.00x10^-3 Ca(OH)2 to the equivalence point
While a 1.00 L flask containing 0.500 atm of gas A is joined with a 2.00 L flask containing 0.850 atm of gas B, as well as the stopcock between the flasks is opened, as well as the gases are allowed to mix thoroughly, the subsequent reaction proce..
A 0.24ml sample of a weak acid with an unknown pKa was combined with 12.0ml of a 3.20M KOH and the resulting was diluted to 1.500L. The measured pH of the solution was 3.75. What is the pKa of the weak acid
Explain what is the heat of the fusion of ice. If cup is 3.494g as well as ice is 11.732g and water 32.128g. Initial water is 23.2 degree Celsius, ice initial is 20 degree Celsius and final temp is 0 degree Celsius. And moles of ice 0.65.
If the average human body discharges 850 g of CO2 per day, how much NaOH is needed each day for each person in the spacecraft? Answer in units of mol.
What is the concentration of hydroxide ion in a 0.27 M aqueous solution of hydroxylamine, NH2OH? Please be detailed on how Kb is found.
In the chlorination of cyclohexane there are two types of termination steps: recombination and disproportionation. 1) give two products of recombination:
Determine the concentration of the HCL solution from the data for the standardization of the HCl with the Na2CO3 Na2CO3 had 0.0826 grams in 25ml of water Initial volume of HCl
Calculate the approximate molarity of this solution from the volume, percent composition, and density.
based on mole ratios. a sample is 59.53 c 5.38h 10.68n and 24.40o what is its empirical formula. a 0.2000 gram sample
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