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Top prepare for this week's lab, you added a KCL solution , Devarda's alloy, and MgO to your soil sample in order to analyze for mineral nitrogen. Sketch a jar containing soil and indicate hoe the nitrogen is initially present in the soil. Then draw three more jars showing the impact of each of the three substances KCL , Devard's alloy, and MgO on the soil sample
the balanced chemeical equation for the reaction of magnesium metal in oxygen gas and for the rection of magnesium metal in nitrogen gas
unknown substance in 30.0 g of cyclohexane was found to freeze at 3.1 degree celcius . what is the molar mass of the unknown substance?
which is limiting reagent when 42.0g of propane , C3H8, is burned with 115g of oxygen ? how many liters gaseous water are produced at STP
What would be the change in pressure in a sealed 10.0 L vessel due to the formation of N2 gas when the ammonium nitrite in 3.0 L of .700 M NH4NO2 decomposes
Determine the molar mass of a covalent compound to be about 220gmol-. In another experiment you establish that its empirical formula
Assume a temperature of 298 K and 1 M concentration. By what factor is one reaction faster than the other?
Write chemical equations for the reaction of fluorine with the following substances, making sure that the numbers and kinds of atoms are the same on both sides of the equations. If no reaction occurs, write noreaction
At what pH will this occur? Ignore complex formation and potential redox reactions.
calculate the equilibrium constant from an absorbance value but my professor never told us how to calculate this.
The IR spectrum of benzoic acid is included on page 3. Assign three specific absorbance bands (from the peak list below the spectrum) to the corresponding bond vibrations
What individual atoms or functional groups could you add to the carbons to make the molecule hydrophobic?
The common forms of nitrogen and phosphorus are N2(g) and P4(s) respectivly. Account for the difference in terms of the single and multiple
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