Chemistry 1a: general chemistry laboratory manual prepared by las positas college chemistry faculty and staff past and present fall 2012 edition. Determining the concentration of a solution: beer's law purpose to determine the wavelength (color) of maximum absorbance for a copper the most common mistake in this lab involves measurements with the pipets any time the pipet is used with a new solution. In this lab we will dissolve magnesium sulfate hydrate (mgso 4 7h 2 o) and magnesium sulfate anhydrate (mgso 4) to find the δh values for each process a hydrate is a chemical with water trapped in its crystalline structure. Chemistry report 4 - free download as word doc (doc / docx), pdf file (pdf), text lab report: hydrated salt formula (experiment 4) tutor's to determine the formula of hydrated salt result mass cuso4 (copper (ii) sulfate) before heat after heat (mass crucible + cover) after.
This is the lab: hypothesis: if i use crucible and mgcl2 (pure salt): 55542g calculations/interpretations: this is where i need help mass of cuso4 xh2o: (so do i just do 58 chemistry lab please help calculations help anyone this is the lab. Title authors level type beer's law lab - guided inquiry activity. Synthesis and analysis of a coordination compound of copper chemistry 111 lab: 1 weigh out 100 grams of copper sulfate pentahydrate, cuso4•5h2o, on a triple beam balance, and place the crystals in a 250 ml beaker 2. The result of this copper lab should have been that the mass of the initial copper and the mass of the final copper equals each other using the reaction cuso4(aq) + zn(s), the product of the net ionic equation can be found in order to determine which ion was removed. Chemistry lab report stoichiometry extracts from this document mass of dish and sample of hydrated cuso4 (g) mass of dish and sample of non-hydrated cuso4 (g) 1st trial 773 839 817 2nd trial 722 872 820 3rd trial 774 841 817 the sample of hydrated cuso4 was in a solid state. Material safety data sheet copper sulfate pentahydrate msds section 1: chemical formula: cuso45h2o contact information: sciencelabcom, inc 14025 smith rd houston, texas 77396 lab coat dust respirator.
We did a lab at our school recently but some of the questions regarding the lab confused me the data obtained from the lab is here: determining the. Determining the enthalpy change for a reaction of copper sulphate and zinc: + cuso4 (aq) cu (s) + znso4 (aq) procedure: alternatively, the temperature of the laboratory could be adjusted. Determining the empirical formula of a hydrated compound introduction the empirical formula of a compound is defined as the simplest whole number ratio of the. Balanced equations phase symbols mandatory in all balanced equations a na 2co 3(aq) + cuso 4(aq) conclusion for precipitate lab there are 6 main indicators of a chemical reaction, shortened to remember to topic-b temperature change.
Pre- laboratory questions and exercises due before lab begins answer in space provided 1 define the following terms a water of hydration b constant mass 2 microsoft word - exp_18_percentage_and_formula_of_a_hydratedoc author: steve. Stoichiometry reaction: fe + cuso4 invited audience members will follow you as you navigate and present people invited to a presentation do not need a prezi account this link expires 10 minutes after you close the presentation a maximum of 30 users can follow your presentation learn more about this feature in our knowledge base article.
The copper lab demonstrates stoichiometry in chemistry stoichiometry is helpful in calculating the amount of an element or compound in chemical reactions. Please watch and comment on my video lab i created i am trying to get an idea of how i could use video labs with my chemistry course or website i guess thi.
2 materials needed: cobalt(ii) chloride hexahydrate, cocl2•6h2o calcium chloride, cacl2, anhydrous test tube, test tube holder spatula or scoopula small watch glass. Mole lab iron filings/copper sulfate h/chemistry introduction: iron filings will react with copper (ii) sulfate (cuso4) in a one to one ratio (1 mole to 1 mole), according to the following chemical equation. Copper(ii) sulfate, also known as cupric sulfate, or copper sulphate, is the inorganic compound with the chemical formula cu so 4 (h 2 o) x, where x can range from 0 to 5 for laboratory use, copper sulfate is usually purchased.
If a 2496 g sample of cuso4 5 h2o were heated to drive off all the water, the anhydrous salt cuso4 would weigh 635 g + 321 g + 4 (160 g) = 1596 g, which is the mass of one mole of cuso4 the mass formula of a hydrate lab category. 100139g cuso4 x (1 mol cuso4/1396090g cuso4) x (1mol cu/1mol cuso4) in this lab, we were to determine the percent yield of copper in the reaction of cuso4 and fe we chose to have the cuso4 solution as our limiting reactant and the iron nail to be our excess reactant. If the concentration of a solution is unknown, the concentration can be measured by deter-mining the amount of light it absorbs solutions containing copper ions must be placed in the waste bottle in the lab designate a \waste copper beaker and set it aside for use during your lab. Cuso4 found in: cupric sulfate, anhydrous, powder, reagent, cupric sulfate, monohydrate, purified, cupric sulfate, anhydrous, powder, reagent also. We did a lab today in chem class and i need help solvng a problem i need to find the x in cuso4 multiplied (x) xh20 ( how many waters are there the percentage of the hydrate was 35% the mass of water lost was 070g the mass of the hysrate used was 200g the mass of the evaporating dish was 4170g the mass of the dish and hydrate was 4370g. This feature is not available right now please try again later.
Lab #7 stoichiometry: the reaction of iron with copper (ii) sulfate introduction slowly add the hot cuso4 solution to the beaker containing the iron powder be sure the addition is slow to avoid excess frothing and possible loss of material. 100 part 1: synthesis of an inorganic compound eye protection must be worn during this lab students work in pairs 1 obtain about 3 g of copper(ii) sulfate pentahydrate, cuso4 h2o using an analytical balancerecord the. Copper sulfate | cuso4 or cuo4s | cid 24462 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. Laboratory, your experiments should be thought out and written down in your laboratory notebook as you design your experiments, keep the following points in mind: 1 use a zn-cu cell so that the results of different students can be easily compared. Electrochemistry i - galvanic cell introduction: uccs chem 106 laboratory manual experiment 9 9-2 have been measured for many half-reactions and they are listed in tables a short list is also provided at the end of the in-lab section. Lab 1: formula of a hydrate safety: crucibles are very hot always handle them with tongs do not put hot crucibles on a balance they cost $900 if you.