论文代写：化合物实验
在第二组实验中，将该化合物与相似的其他化合物进行比较。首先，进行了CO3的测试。在该试验中，将0.1M Hcl加入到溶液中，确定反应不发出嘶嘶声，因此化合物中没有CO3。其次，对Cl进行测试，并确定卤素离子的不存在。最后对KNO3进行了测试，结果表明在FeSO4和H2SO4交界处形成了一个棕色的环。在这里，我们遇到了一个问题，因为首先棕色的戒指没有出现。由于所有其他测试都是阴性的，并且在最后的测试中没有白色沉淀物，否则Cl离子，我们重新进行棕色环测试。使用相同数量的电抗，我们用蒸馏水将管与梯级相比较，以找出黑暗中的差异，并建立KNO3作为未知化合物。通过火焰测试阳离子是K，并且因此建立了通过硝酸盐测试的阴离子是NO3。
论文代写：化合物实验
In the second set of experiments, the compound was compared to similar other compounds. Firstly, a test for CO3 was conducted. In the test, 0.1M Hcl was added to the solution and it was identified that the reaction did not fizz so there was no CO3 in the compound. Secondly, a test for Cl was conducted and in it the absence of halide ions was established. Finally, the test for KNO3 was conducted and it was identified that a brown ring was formed at the junction of FeSO4 and the H2SO4 mixed with the compound. Here we faced an issue because firstly the brown ring did not appear. Since all other tests were negative, and there was no white precipitate in the last test, negating the Cl ion, we redid the brown ring test. Same amount of reactance was used, and we compared the tube with rung to another with distilled water in order to find out the difference in darkness and we established KNO3 as the unknown compound. The cation is K by flame test and the anion is NO3 by the nitrate test was hence established.
