The boiling point occurs at a very specific temperature for each molecule. That is why it is often used to identify an unknown substance in qualitative chemistry. The reason that the boiling point is predictable is because it is controlled by thestrength of the bondsholding the atoms in the m...
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Chemistry Lab Reportessay Aim The aim of the experiment is to determine the effect on the rate of the reaction of the concentrations of the two substances, hydrogen peroxide (the substrate) and the yeast (the enzyme). The rate of reaction is determined by measuring how ... ...
Solve the equation in Step 2 to find that there are 3.33 moles of H2O in 600 grams of H2O. References Stoichiometry How to calculate the molar masses of chemical compoundsCite This Article MLA Tyler, Judy. "How To Determine Moles In Chemistry" sciencing.com, https://www.sciencing.com/dete...
Since water is a ubiquitous liquid and solvent, it is worth investigating the factors that determine its vapor pressure equation in more detail. Water has a Pvaporof 0.031 atm, or less than 1/30th of atmospheric pressure. This helps explain its relatively high boiling point for such a simple...
By analyzing the cores, scientists are able to determine the quantity and quality of the bauxite. Luis Castaneda/Getty Images An aerial view of a bauxite mine and alumina processing plant in Australia Luis Castaneda/Getty Images After the ore is discovered, open-pit mines typically ...
This makes it more difficult to determine movement at higher levels than lower. So a water change will drop those levels and allow you to more quickly learn if nitrates are continuing to increase. A waterchange will not impact your bacteria, since it is not free-floating and clings to ...
What is the purpose of the boiling chips during simple distillation? How do you know when a compound is a liquid? Explain how you could use the melting point to determine the purity of a solid sample. Post Lab Questions Fer...
Use the liters of titrant necessary to reach the end point of the titration and the concentration of the titrant to determine the moles of titrant used in the process. The concentration of the NaOH was 0.1044 mol/L, then 0.03975 L NaOH x (0.1044 mol/L) = 0.004150 moles of NaOH ...
Your proposed hypothesis is that salt water has a higher boiling point than fresh water. To help you determine if your data answers your question and if it agrees with your hypothesis, ask yourself if the scientific evidence (your data) agrees with the hypothesis, what can you expect to see...