lab we took Fe(NO3)3 and NaOH and mixed 7 different mole ratios in graduated cylinders to determine what the mole ratio is. We also did the same thing with solutions of CuCl2 and Na3PO4. We determine the mole ratios by graphing the volume of reactant #1 vs. volume of precipitate for each reaction. Data Part 1.) Cylinder 1 2 3 4 5 6 7 Fe(NO3)3‚ 0.1 M‚ ml 5 10 12 15 17 20 24 NaOH‚ 0.1 M‚ ml 55 50 48 45 43 40 36 Fe:OH mole ratio 1:11 1:5 1:4 1:3 2:5 1:2 2:3 Volume Precipitate
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Name Mole Lab Exercises I. Pre Lab Questions Answer the following questions. (Hint: Your textbook will be helpful.) 1. ‘s number is the number of carbon atoms that are present in 12 g of 12C. 2. How many molecules of a compound are in one mole of that compound? 3. Write out the formula for finding percent by mass. 4. Write out the formula for finding Molarity. 5. The Formula Weight of a compound is equal to mole of that compound.
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Are naked eggs with no shell? What? You may think I am speaking about a hard boiled egg‚ but‚ no. Boiled eggs have their centers heated making the shell easily come off. Naked eggs have their shells taken off with one simple ingredient everyone has. Vinegar. The vinegar acid inside the vinegar strips the shell away from the egg. The vinegar solutions dissolves the shell from the egg. Once the egg has been separated form it’s shell the only thing keeping the liquid goo inside is the thin‚ flexible
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Candida - Candida is Morell’s wife and mother of their two young children. Shaw explains that "she possesses the double charm of youth and motherhood. Her ways are those of a woman who has found that she can always manage people by engaging their affection‚ and who does so frankly and instinctively without the smallest scruple." She deeply loves her husband Morell‚ but is quite taken with Eugene Marchbanks’ naïve‚ poetic nature. "This comes of James teaching me to think for myself‚ and never to
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In Genesis‚ the naked body is something considered to be ashamed of by Adam and Eve‚ but not “bad”. The bodies of Adam and Eve were created and given by the Lord God‚ which is a pure and good being. In the Sarcophagus of Junius and Bassus‚ we can find Adam and Eve in a lower section between two columns. The reliefs of them are both looking down in a contrapposto position‚ holding a fig leaf with two hands to cover their own genitals‚ standing on two sides of the tree‚ in the opposite direction with
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Endangered Species Kangaroo Rat Habitat The Kangaroo Rat lives in arid areas. Many live in the western and southwestern deserts of the US such as California‚ and between the Sierra Nevada /Cacscade and Rocky mountains from southern Canada to central Mexico. The type of habitat Kangaroo Rats live in are sandy‚ rocky soils in deserts with little vegetation. They live in underground burrows that go in at an angle. Some Kangaroo Rats prefer to live in grass-land habitats that are well developed
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conditioning in rats. The purpose of the experiment was to condition rats to suppress certain hunger behaviors such as water licking. Burdick and James paired the neutral stimulus of white light with shock in a “test chamber” to see if rats would develop an association between the two stimuli. Naturally‚ shock induces a fear-like freezing behavior‚ and after being conditioned the rats displayed the same behavior but only to the white light. Furthermore‚ they would then place the rats back in their
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Naked Juice What are the attributes and benefits of your product/service? How do they relate to your target market? BUSI-520 What are the attributes and benefits of your product/service? How do they relate to your target market? When presenting the organic juices to consumers‚ Naked Juice truly understand how to use the benefit-based segmentation to distinguish the needs and benefits of its consumers. It is essential for a company to
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Mole Fraction Return to Solutions Menu The mole fraction is: moles of target substance divided by total moles involved The symbol for the mole fraction is the lower-case Greek letter chi‚ χ. You will often see it with a subscript: χsolute is an example. Example #1: 0.100 mole of NaCl is dissolved into 100.0 grams of pure H2O. What is the mole fraction of NaCl? Solution: 100.0 g / 18.0 g mol¯1 = 5.56 mol of H2O Add that to the 0.100 mol of NaCl = 5.56 + 0.100 = 5.66 mol total Mole fraction
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S. 5.2 – The Mole The mole: - - - - Ex. - Molar mass (g/mol): - - - Ex. |Element |Atomic mass shown on Periodic |Molar mass of element | | |table | | |N |14.0067 |14.0067 g
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