Essay about Life in America

Submitted By jasmine_mars
Words: 2513
Pages: 11

After determining the weights of the unknown and NaCI weights , the student was to use their weights to calculate their mole ratio. They determined that the number of moles if unknown was 0.05 for A and 0.04 for B. The mass of NaCI obtained was 3.28 and the number of moles of NaCI was 0.06. They determined that the mole ratios for C/A equalled 12 and the mole ratio for C/B equalled 15. The student determined that the whole number mole ratios were 2 for bothThe goal of this experiment was to establish how valid a balanced equation was by doing experiments that determined the molar ratio of reactants and products in a chemical reaction. For the procedure the student was to weigh a dry porcelain evaporating dish and then weight it into an approximate 4g sample of their unknown. They were then supposed to add 3m hydrochloric acid until the sample dissolved . The next part was for the student to placed the covered dish onto a hotplate so the contents boiled gently. When the residue in the dish was completely dry the student was to use crucible tongs to remove the dish and watch glass from the hot plate and set them on an iron ring. When it cooled the student was to determine the weight of the dish, watch glass, and residual NaCI. Next the student was to subtract the weight of the empty dish and watch glass to get the weight of the NaCI produced.
The goal of this experiment was to establish how valid a balanced equation was by doing experiments that determined the molar ratio of reactants and products in a chemical reaction. For the procedure the student was to weigh a dry porcelain evaporating dish and then weight it into an approximate 4g sample of their unknown. They were then supposed to add 3m hydrochloric acid until the sample dissolved . The next part was for the student to placed the covered dish onto a hotplate so the contents boiled gently. When the residue in the dish was completely dry the student was to use crucible tongs to remove the dish and watch glass from the hot plate and set them on an iron ring. When it cooled the student was to determine the weight of the dish, watch glass, and residual NaCI. Next the student was to subtract the weight of the empty dish and watch glass to get the weight of the NaCI produced.
The goal of this experiment was to establish how valid a balanced equation was by doing experiments that determined the molar ratio of reactants and products in a chemical reaction. For the procedure the student was to weigh a dry porcelain evaporating dish and then weight it into an approximate 4g sample of their unknown. They were then supposed to add 3m hydrochloric acid until the sample dissolved . The next part was for the student to placed the covered dish onto a hotplate so the contents boiled gently. When the residue in the dish was completely dry the student was to use crucible tongs to remove the dish and watch glass from the hot plate and set them on an iron ring. When it cooled the student was to determine the weight of the dish, watch glass, and residual NaCI. Next the student was to subtract the weight of the empty dish and watch glass to get the weight of the NaCI produced.
The goal of this experiment was to establish how valid a balanced equation was by doing experiments that determined the molar ratio of reactants and products in a chemical reaction. For the procedure the student was to weigh a dry porcelain evaporating dish and then weight it into an approximate 4g sample of their unknown. They were then supposed to add 3m hydrochloric acid until the sample dissolved . The next part was for the student to placed the covered dish onto a hotplate so the contents boiled gently. When the residue in the dish was completely dry the student was to use crucible tongs to remove the dish and watch glass from the hot plate and set them on an iron ring. When it cooled the student was to determine the weight of the dish, watch glass, and residual NaCI. Next the student was to subtract the weight