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Problem- a 2.50-g sample of calcium metal is heated in a 38.500-g crucible to form a calcium oxide. if the crucible and product weigh 38.850 g, what is the empirical formula for calcium oxide?
I need help for above question. Show each steps for the above problem.
a cylinder measuring 5.7 cm wide and 6.8 cm high is filled with gas. the piston is pushed down with a steady force
What would be the product if dimethyl maleate (cis-MeCCH=CHCO2Me) was heated in the presence of 3-sulfolene?
A mixture of CO(g) and O2(g) in a 1.1 L container at 1100K has a total pressure of 2.2 atm. After some time the total pressure falls to 1.9 atm as the result of the formation of CO2. Find the amount of CO2 that form.
the molecular formula of acetylsalicylic acid aspirin one of the most common pain relievers is hc9h7o4. how many
Add curved arrows to both structures to show the delocalization of electron pairs needed to form the other resonance contributor.
Calculate ?H° for each of the following reactions using the data in Appendix 4: 4Na(s)+O2(g) ? 2Na2O(s) 2Na(s)+H20(l) ? 2NaOH(aq)+H2(g) 2Na(s)+CO2(g) ? Na2O(s)+CO(g) Explain why a water or carbon dioxide fire extinguisher may not be effective inpu..
ammonium carbonate nh4co2nh2 decomposes as followsnh4co2nh2sltgt 2nh3g co2gstarting with only the solid it is found
A metal M forms an oxide with the formula M(sub2)O. (2atoms of M, 1 atom Oxygen) for which the mass % of the metal is 88.8%. a. Explain what is the molar mass of the metal. b. State the name of the compound.
How many grams of magnesium chloride, MgCl2, would be required to prepare a 0.2019 m MgCl2 solution by combining this compound with 0.2050 L of water (assume a density of 1.00 g/mL)?
The equilibrium constant at 427°C for the reaction N2(g) + 3H2(g) 2NH3(g) is Kp = 9.4 × 10-5. Calculate the value of ΔG° for the reaction under these conditions.
the lattice energy of csf is -744 kjmol whereas that of bao is -3029 kjmol. explain the large difference in lattice
Why can NH3 function as a ligand with Ni^2+ While NH_4 + cannot function as a ligand with Ni^2+
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