Grignard reaction experiment 0.6846 g of Mg (molar mass 24.305g / mol 2.06 of 2 bromopropane (density molar mass 122.99g / mol and 142 of 4-anisaldehyde (density 1.12g / moL molar are used Assuming H3PO4 is in excess theoretical yield of the final product molar mass 180.24g / mol is __g -- -
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- / Compound which is composed of 57.14% C, 6.16% H, 9.52% N, 27.18% O by mass and has a molar mass of 294.3 g/mol. What is Molecular formula of this compound (At. Wt C=12, H=1, 0=16, N=14).The vinyl chloride molecule is (C2H3CI)n Calculate the molecular weight of polyvinyl chloride (PVC) molecule with n=D10. Given: Molar mass: • M(C)=12.01 g/mole • M(H)=1.008 g/mole • M(CI)= 35.45 g/mole Select one: a. Molecular weight= 841.56 b. Molecular weight= 3366.24 c. Molecular weight3 624.94 d. Molecular weight= 1683.12 e. Molecular weight= 21039 f. Molecular weight= 2103.9 g. Molecular weight3D420.78 h. Molecular weight= 8415.6A 20 mL volume of 0.015 M KIO3 containing an excess of KI, is added to a 0.312 g sample of a Real Lemon solution containing vitamin C. The Yellow-brown solution, caused by excess I2 is titrated to a colorless starch endpoint with 11.3 mL pf 0.106M Na2S2O3. Question: Calculate the moles and grams of vitamin C ( C6H8O6*176.06 g/mol) in the sample
- Ferrocene, Fe(C5H5)2(s), can be prepared by reacting 3.0 g of FeCl2(s) with anequal mass of cyclopentadiene, C5H6(l), and an excess of KOH, as shown in thefollowing reaction FeCl2 + 2C5H6 + 2KOH → FeC10H10 + 2H2Oa. What is the limiting reagent in this procedure?b. Based on your answer to part A, what mass of Fe(C5H5)2 couldtheoretically be formed?c. A student who carried out this reaction obtained 2.7 g of ferrocene. Whatwas the percent yield for this reaction?1. Given the equation for the combustion of isopropyl alcohol 2 C3H7OH +9 02 6 CO2 +8 H2O Set up the mole ratio of (a) CO2 to C3H7OH (b) C3H7OH to 02 (c) O2 to CO2 (d) H2O to C3H7OH (e) CO2 to H2O (f) H2O to O2Mixed Practice: 11. Asprin, CoHsO4, is produced through the following reaction of salicylic acid, CH&Os, and acetic anhydride, CAH¢O3. How many molecules of acetic acid, HC:H3O2, will be formed from 2 moles of acetic anhydride, C4H6O3? CHO(s) + CạH&O; (I) → CHO4 + HC;H;O2 (1)
- of Tampa - Prod - Sign B Course Content - Biological Scier x B Plant structure and growth 1- Bi X 101 Chem101 + i app.101edu.co Question 10 of 10 If 62.3 g of aspirin (C»H&O4) are produced from 79.8 g of C-H.Os, what is the percent yield from the reaction below? C-H.Os (s) + C«H&O3 (s) - CoHsO4 (s) + HC2H3O2 (aq). 2 Type here to search6.312 g of p-aminophenol (MW = 109.13 g/mol) is reacted with 6.600 g of acetic anhydride (MW = 102.09 g/mol) to form acetaminophen (151.16 g/mol) and acetic acid (60.052 g/mol) as shown in the reaction below. What is the theoretical yield of acetaminophen? %3D O. CH3 %3D H. NH2 NH HC HC CH CH но CH3 CH3 H3C но но acetic acid acetaminophen acetic anhydride p-aminophenol O 11.95 g 9.772g 9.258 g O 8.743 g O 13.14 gGive typed full explanation A stock solution of lithium phosphate (Li3PO4, MM= 115.794361 g/mol) is prepared by dissolving 295.8 g Li3PO4 in deionized water to a final total volume of 1.000 L. Suppose a 1.000-mL aliquot is taken from this stock solution and transferred to a new container to which deionized water is added until the total volume is 50.00 mL. A new 1.000-mL aliquot is taken from this 50.00 mL solution and transferred to a third container to which deionized water is added until the total volume is 25.00 mL. Calculate the number of individual lithium ions (Li+) in the final 25.00-mL solution. Note that lithium phosphate is a strong electrolyte that completely dissociates in water (note that (aq) means the species is a solute in an aqueous solution): Li3PO4 (aq) 3 Li+ (aq) + PO43– (aq) Report your answer to two significant figures. Use scientific notation. Example: 1.0*10^23 (this notation means 1.0 1023)
- Chemistry 1. Balance the reaction C2H4+_ (O2+3.76N2) 2. Find the molecular weight (MW) of ethanol (aka 200 proof alcohol) C₂H5OH2K MnO4 +6 HCI -> 5Clz+ZKCI + 2 Mnclz +8 HzU HOw moles of Clz are produced by 25.983 moles many assuming an excess of Hcl is present?Calculation of AH; of Magnesium Oxide Mg + 2 HCI MgCl2 * Hz2 AH, = kJ/mole MgCl2 +H2O > Mgo + 2 HCI -AH2 = kJ/mole He + 를 O2 + H2O AH3 = - 286 kJ/mole net: Mg + 을 O2- MgO 사Hnet = kJ/mole The literature value for the AHf of magnesium oxide is -602 kJ/mole.