Two reaction of interest are as followS: Cl2 + C,H Cl2 + C,Hs C,H-CI + HCI C,HCl, When the reaction is finished, the quantity of each specie is listed below Cl2 : 160 moles C,H : 400 moles C,H;Cl : 10 moles C,HCl : 40 moles HCl : 10 moles (a) How many moles of Cl, are there in the feed? (b) How many moles of C,H are there in the feed? (c) Which one is the limiting reactant?
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- A sample weighing 3.165 g is a mixture of Fe,0, (molar mass = heat and a stream of H, gas is applied to the sample, the Fe, O, reacts to form metallic Fe and H, O(g). The AL,O, does not 159.69 g/mol) and Al,O, (molar mass = 101.96 g/mol). When 3 react. If the sample residue (the solid species remaining after the reaction) weighs 2.867 g, what is the mass fraction of Fe, O, in the original sample? g Fe,O3 g original sample mass fraction:A pipet is used to transfer 5.00 mL of a 1.25 M stock solution in flask “S” to a 25.00-mL volumetric flask “A,” which is then diluted with DI H2O to the calibration mark. The solution is thoroughly mixed. Next, 2.00 mL of the solution in volumetric flask “A” is transferred by pipet to a 50.00-mL volumetric flask “B” and then diluted with DI H2O to the calibration mark. Calculate the molarity of the solution in volumetric flask “B.”You dissolve 150.0 grams of a mixture of MgCl2 and KCI in water, add a solution of excess AgNO3, and precipitate all of the chloride ion as AgCI. After filtration and drying, you find that you have formed 335.0 grams of AgCl. What is the mass in grams of KCI that was in the original 150.0 grams of mixture? g 1 4 C 7 8. +/- x 100 Tap here or pull up for additional resources 3. LO
- A pipet is used to transfer 5.00 mL of a 1.25 M stock solution in flask "S" to a 25.00-mL volumetric flask "B," which is then diluted with DI H,0 to the calibration mark. The solution is thoroughly mixed. Next, 2.00 mL of the solution in volumetric flask "A" is transferred by pipet to a 50.00-mL volumetric flask "B" and then diluted with DI H,0 to the calibration mark. Calculate the molarity of the solution in vol- umetric flask “B."3.A core sample is saturated with an oil (po = 35°API), gas and water. The initial weight of the sample is 224.14 g. After the gas is displaced by water (pw = 1 g/cm'), the weight is increased to 225.90 g. The sample is the placed in a Soxhlet distillation apparatus, and 4.4 cm' water is extracted. After drying the core sample, the weight is now 209.75 g. The sample bulk volume, 95 cm3 is measured in a mercury pycnometer. Find the porosity, water saturation, oil saturation, gas saturation and lithology of the core sample.An inexperienced graduate student moved into a laboratory and began work. He needed some diethyl etherfor a reaction, so he opened an old, rusty 1-gallon can marked “ethyl ether” and found there was half a gallon left. To purifythe ether, the student set up a distillation apparatus, started a careful distillation, and went to the stockroom for the otherreagents he needed. While he was at the stockroom, the student heard a muffled “boom.” He quickly returned to his lab tofind a worker from another laboratory putting out a fire. Most of the distillation apparatus was embedded in the ceiling.(a) Explain what probably happened.(b) Explain how this near-disaster might have been prevented
- An environmental study was performed to measure the transport of a DDT (a banned pesticide) throughout the globe. A lake in northern Canada was sampled to see if low levels of DDT were present there in spite of it not being administered within 1000 miles of that location. 1.000 L of the lake water was spiked with 100.0 uL of a 2.451 ug/L solution of tetrachlorobenzene, which acted as the internal standard. The entire 1.000 L spiked solution was concentrated onto an SPE column. After washing the SPE column with ~5 mL of pure water, the analyte and internal standard were eluted from the SPE column using ~5 mL of CH2Cl2 solvent. The eluted sample was evaporated under a stream of nitrogen to a final volume of 1.000 mL. 1 uL of this final solution was analyzed using GC-MS, and gave a signal of 24835 for DDT and 11597 for tetrachlorobenzene. To calculate the response factor, a standard solution was prepared consisting of 1.482 ug/L of DDT and 2.451 ug/L of tetrachlorobenzene.…A 10 N aqueous sulfuric acid solution (300 Tw) is made to react with a 55% aqueous NaOH solution (640Be, heavier than water) to form 135 g of Na2SO4 per J 00 mL NaOH solution. The volume ratio of the acid solution to the base solution is 2: 1. Find: a) the Limiting reactant; excess reactant b) % excess reactant c) Degree or completion and d) % composition by weight of the materials after reaction.Sum of coefficients C7H8 + O2 --> CO2 + H2O after balancing
- How many grams of nitric acid, HNO:, are required to neutralize (completely react with) 4.30 g of Ca(OH): according to the acid-base reaction: 2 HNO:(aq) + Ca(OH):(aq) - 2 H:O(1) + Ca(NO.).(aq) STARTING AMOUNT ADO FACTOR ANSWER RESET *( ) 164.10 2 6.022 x 10 3.60 18.02 7.31 74.10 0.116 0.0580 63.02 0.0682 4.30 g Ca(OH): mol H:O g H:O g Ca(NO.) mol Ca(OH): mol Ca(NO.): mol HNO: g HNO,A pipet is used to transfer 6.00 mLmL of a 3.75 MM stock solution in flask “S” to a 25.00-mL volumetric flask “A,” which is then diluted with DI H2OH2O to the calibration mark. The solution is thoroughly mixed. Next, 10.00 mLmL of the solution in volumetric flask “A” is transferred by pipet to a 50.00-mL volumetric flask “B” and then diluted with DI H2OH2O to the calibration mark. Calculate the molarity of the solution in volumetric flask “B.”4 A model for the compound butane is shown. E 20 F3 D C Submit Answer 4 Write a balanced chemical equation that shows the formation of butane from the elements carbon (C) and hydrogen (H₂ ). (Use the smallest integer coefficients possible and do not include states.) ball & stick-+ labels 200 000 F4 R F + H % 5 V WH [Review Topics] [References] Use the References to access important values if needed for this question. Retry Entire Group 9 more group attempts remaining Cengage Learning Cengage Technical Support F5 T G B MacBook Air F6 Y H & 7 F7 U N * 8 J F8 M ( 9 K DD FO O F12 I } delete