There are three sets of sketches below, showing the same pure molecular compound (hydrogen chloride, molecular formula HCI) at three different temperatures. The sketches are drawn as if a sample of hydrogen chloride were under a microscope so powerful that individual atoms could be seen. Only one sketch in each set is correct. Use the slider to choose the correct sketch in each set. You may need the following information: melting point of HCI: -114.8 °C boiling point of HCl: -85.1 °C A (Choose one) (Choose one) (Choose one) 0. °℃ B i -124. °C -100. °C

The following evidence was obtained from an experiment to determine the molar concentration of a sodium nitrate solution. A sample of sodium nitrate solution was evaporated to dryness and the mass of solid residue was measured.Evidence:Volume of solution = 10.00 mLMass of beaker = 79.54 gMass of beaker and residue = 82.96 gFrom this data, calculate the molar concentration of the original sodium nitrate solution. Record only your numerical answer with the correct number of significant digits.  You do not need to include units as the units appear for you beside the answer box already.

[References] A solution is prepared by dissolving 16.2 g ammonium sulfate in enough water to make 260.0 mL of stock solution. A 35.00-mL sample of this stock solution is added to 60.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions in the final solution. Assume that the volumes are additive. Concentration of ammonium ions = Concentration of sulfate ions = M Suhmit Answer Toy Another Version

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