Post lab of cucl2
We performed a lab and with the data i collected the formula came out i think that it's much more likely that the ratio is 1 / 15 and the correct formula is cucl2 that compound has a molar mass of 1344 0 how do i determine the empirical formula of copper chloride hydrate. 250-ml beaker 1 g cupric chloride, cucl2(2h2o tap water 20-23 cm, aluminum wire metal scoupula distilled water wire cutters test tube (16x125mm) equation for the reaction that occurred between the al wire and the cupric chloride solution is required to answer the post lab questions. Limiting reactants lab with cer 2017 in the reaction with al and cucl2, what do you think the reactants and products will look like, including color how can we visually determine which is the limiting reactant post-lab questions. Isolation of caffeine from tea leaves via acid-base liquid-liquid extraction andra postu october 6, 2013 lab partner: sean wilson.
Post-laboratory questions 1 why is it better to extract twice with 15 ml portions of solvent 2 instead of once with a 30 ml volume of solvent 2 assume k2/1 = 4 and start with 10 grams in 100 ml of solvent 1 lab report for experiment #1: extraction. Le chatelier's principle states that when an equilibrium system is subjected to a stress, the system responds by attaining a new equilibrium condition that minimizes the imposed stress post-lab questions 1 a the addition of hcl caused the equilibrium to shift to the right. Calculate the number of moles of cacl2 that can be obtained from 25g of limestone caco3 in the prescence of trying to figure out these post-lab questions we had to produce a precipitate of a reaction of: 1) 1 ml 1m na2so4 + 9ml 1m cacl2 our result was 569g 2) 5 ml 1m na2so4 + 5 ml. Abstract: for this lab experiment, our new group, the acids, tested sample elements a-g with the hopes in gaining enough knowledge to characterize each sample as a metal, a nonmetal, or a metalloid. Determining the chemical formula of a copper chloride hydrate the chemical formula of a copper chloride hydrate was determined by measuring the masses of the separated components of water and copper. Pre- laboratory questions and exercises due before lab begins post- laboratory questions and exercises due after completing lab answer in space provided 1 microsoft word - exp_18_percentage_and_formula_of_a_hydratedoc.
Activity 4: transformation of e coli using green fluorescent protein follow all directions for post-lab clean-up using gloves, collect all petri dishes, disposable pipets and tubes and immerse in a 10% bleach solution for 20 minutes or more to kill all bacteria. Flame test lab melissa schroth # 14 rose porrett # 13 cucl2: v=c/wavelength v= (300x10^ 8 m/s) / post lab questions: 1 q: were you able to see different colors for the metals why or why not a: yes you were for the most part able to see different colors fot the metals.
Chemical reactions of copper and percent yield key pre-lab (review questions) 1 give an example, other than the ones listed in this experiment, of redox and metathesis reactions. Prepare the computer for data collection by opening the file 14 conductivity solutions from the chemistry with vernier folder 4 the complete chemistry with vernier lab manual includes 36 labs and essential teacher information. Hydrate lab purpose: • to experimentally confirm the properties of a hydrate (reversible dehydration and color change, solubility of residue) • to identify substances as hydrates based on their known properties. Experiment 6 soil ph educational goal by the end of this experiment, you should: cacl2 dissolves quickly when exposed to moisture post lab questions what is the ph of ultrapure water in a beaker.
9-1 experiment 9 electrochemistry i - galvanic cell introduction: chemical reactions involving the transfer of electrons from one reactant to another are called oxidation-reduction reactions or redox reactionsin a redox reaction, two half-reactions occur one reactant gives up electrons (undergoes oxidation) and another. Conductivity of solutions lab report - free download as word doc (doc), pdf file (pdf) or read online for free ap chem lab write-up. Flame test lab dan hemmerle brandon koverchick 12/2/09 introduction: in this lab we will be working on heating elements over a flame so you can figure out the color of each element with a nicrome wire hypothesis: all the elements will burn in the same range of color in the color spectrum purpose: the purpose of this lab was to find out the. I believe it is 2 cucl2 + na3po4 -- cupo4 + na3cl2, but when balanced it ends up being a 1:1 ratio ideas the 2:1 was based on a lab we did, and i'm 999% sure it's right, but then the balancing gets weird, and i know it's a double reaction.
Post lab of cucl2
Transformation of copper: a sequence of chemical reactions objectives reactions procedure some places where our procedure differs from that in the lab packet transform cu(s) to [cu(h 2 o) 6] 2+ (aq) obtain a piece of copper wire and weigh it to the nearest 001 g. Post lab: electrolytes electrolytes are substances that form positive(+) and negative (-) ions in water conduct an electric current electrolytes in the body carry messages sent to and from the brain as electrical signals slideshow 3760667 by hung. Question 5 of 6 (i need help with this entire table, calculations, and post-lab questions/answers) 60 points please upload (in pdf format) yo.
- Chapter 3 stoichiometry 3-1 chapter 3 stoichiometry in this chapter as you have learned in previous chapters, much of chemistry involves using macroscopic measurements on quantities that we work with easily in the laboratory.
- Post-lab report s-15 used in the laboratory activity web resources s-16 bacterial transformation standards 3 next generation science standards performing the transformation lab activity using the maryland loaner lab must first complete the.
- Preparation of calcium carbonate lab determine your percent yield for calcium carbonate post lab questions: 1 how many grams of zinc carbonate are formed from the reaction of 511 g zinc sulfate and 325 g sodium carbonate 2.
This post is based on two similar labs that i did in my chemistry class exact reactants labs march 10, 2014 stevenmalouff leave a comment a 1:1 ratio is also not the perfect ratio for this lab there was not enough cucl2 this time furthermore, the foil did not fully. Copper (ii) chloride (cucl2) solution prelab questions: answer in complete sentences in your lab nb based on our discussion of the results of the conductivity lab, what does this suggest about this substance as a solid and in solution. Does anyone know where i can find the answers to the post-lab questions for flinn chemtopic labs on chemical bonding if you mix cucl2 solution with na3po4 solution. Background when you are making a ham and cheese sandwich, you need two slices of bread and one piece of ham and cheese how many complete sandwiches could you make if you had eight slices of ham, seven slices of cheese and eighteen slices of bread.