新西兰代写个人简历

新西兰代写被查:化学实验

新西兰代写被查:化学实验

溶解度试验是进行的首要试验。因此,大约0.1毫克的粉末被放入水中,以检查它是否溶于水。pHTest:首先,酸性或碱性化合物的性质是建立和PH测试条使用,以确定其PH.Flame测试:首先,火焰进行了测试。火焰测试是为了根据化合物在火焰下的发射光谱来识别化合物中是否存在金属离子等元素。每种化学元素都有其特有的发射光谱。为了确认下表中的阳离子,进行了火焰试验。上述指南有助于缩小在火焰测试中产生特定颜色的化合物的范围。测试二氧化碳:这个测试是确定如果在问题有二氧化碳。为了鉴定CO3,在化合物中加入1 ml 0.1M HCl。根据这个实验,当反应嘶嘶作响时,化合物中含有CO3。
氯离子测试:下一个测试一旦二氧化碳的存在与否是确定了是进行氯离子测试。测试时,将1 mL 6M HNO3和1 mL 0.1M AgNO3溶液分别加入1 mL未知化合物中。根据这个测试,如果有白色沉淀的形成,还有卤离子或醋酸或硫酸ionsTest排名:卤化物进行测试后,下一步是进行这个测试排名,但只有当碘被排除了。将1ml未知溶液置于试管中,然后小心翼翼地加入3ml浓硫酸H2SO4。然后,将混合物彻底冷却,使产生混合物的管道倾斜45度。在管的内侧,倒入2ml的FeSO4溶液溶液。当后者浮在较重液体的顶部时,要做一个检查,以确定在这两种液体的交界处是否形成了一个棕色的环。

新西兰代写被查:化学实验

Solubility test was the primary test to be conducted. So about 0.1 mg of powder was placed in water to check for whether it dissolves in water.pHTest:Firstly, the acidic or basic nature of the compound was to be established and the PH test strip was made use of to determine its PH.Flame Test:Firstly, the flame test was conducted. The flame test is conducted in order to identify the presence of elements such as metal ions in a compound based on the emission spectrum of the compound when exposed to flame. Each chemical element has its own characteristic emission spectrum. In order to confirm the cation from the following table, the flame test was used. The above guide helped in narrowing down on the compounds that could produce a specific color in the flame test. Test for CO3:This test was to identify if the compound in question has CO3 in it. For identification of CO3, 1 ml of 0.1M HCl was added to the compound. According to this test, when the reaction is fizz, the compound contains CO3.
Test for Cl anion:The next test once the presence or absence of CO3 is identified is to conduct the Cl anion test. For the test, 1 mL of 6M HNO3 and 1 mL of 0.1M AgNO3 solution will be added to 1 mL of the unknown compound. According to this test, if there is a formation of white precipitate, then there are halide ions or acetate or sulfate ionsTest for NO3:Once the test for halide was conducted, then the next step was to proceed with this test for NO3 but only when iodine is ruled out. 1 mL of the unknown solution is first placed in a test tube and then 3ml of concentrated H2SO4 is added to the solution with caution. The mixture is then cooled thoroughly and the tube in which the mix is produced is then inclined to an angel of 45 degree. In the inner side of the tube, a 2 ml liquid solution of FeSO4 solution is poured inside. When the latter floats at the top of the heavier liquid, a check is done to confirm if a brown ring is formed at the junction of the two liquids.