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- anderbilt University - Caler X B Syllabus - CHEM 1601-21-5 x 101 Chem101 M "INBOX/CHEM" - esmat.has X F ES 1401-05 - FUSION TEAM X How https://app.101edu.co Question 10 of 10 Sulfur has four isotopes and has an atomic mass of 32.066 amu. The four isotopes have the following atomic masses: S-32, 31.972071 amu; S-33, 32.971458 amu; S-34, 33.967867 amu; and S-36, 35.967081 amu. The last two have natural abundances of 4.29% and 0.02%, respectively. Calculate the natural abundance of S-32. 1 4. 8. +/-Calculate the percent composition by mass for CaCO3. Use the molecular weights to two decimal places in your calculations. a) %C = b) %Ca = c) %O = eTextbook and Media Hint Save for Later o search 99+Wondershare PDFelement Pro File Edit View Tool Go Window Help 69% [4) A АВС Wed 1:12 PM 7.(a) Compound X has the following percentage composition by mass: C: 38.9% ; H: 5.4% ; Cl: 38.4%; O: 17.3% (i) Calculate the empirical formula of X. (Relative atomic mass of C = 12; H = 1; Cl= 35.5; O= 16.0) C H Cl % by mass of atoms relative no. of mole of atoms (= % by mass ÷ relative atomic mass) simplest mole ratio of atoms (divided by the smallest no. of mole) The empirical formula of X is (ii) Find out the molecular formula of X if the relative molecular mass of X is 92.5. (c) If X is an optically alkanal, give the structural formula X and draw this pair of enantiomers. Structural formula of X : (b) If X has a C=C bond and a saturated OH group (i.e. The OH group does not attach to the C=C), give the structural formula of X if X shows cis-trans isomerism. Draw the pair of cis-trans isomers. Structural formula of X :
- 3 q eq creg A model of the cyclopentanone molecule is shown in the window below. _ch06.doc $ 4 R F ball & stick-+ labels Submit Answer a. How many carbon atoms are present in 4.19 moles of this compound? atoms b. How many moles of cyclopentanone are present in 1.68 x 1022 molecules of this compound? moles V % Use the References to access important values if needed for this question. 5 2 T Retry Entire Group 9 more group attempts remaining G ^ 6 B Y H & 7 N F7 U * 8 FB 1 M ( 9 K F9 O ) O A P Previous Email Instructor { 1 Next> Save and Showg se %-= m g s 818 Main group SA Determine the number of moles in 2.58 kg of lithium Sulfate (Li₂SO4) 04 ce this equa -NH3t NO --7-N₂t_H₂U What are the coefficientsQ,) a compound is found to contain 40 % carbon, 6.7 % hydrogen, and 53 % oxygen by weight. What is the empirical formula for this compound? (Where the atomic weight of O is 16 and for H is 1 and for C is 12) Qs) who many allotropes does carbon element has? Which is harder?
- indexhtml?_con con&external browser-08launchUrl-https%253A252F%25 Question 12 Home Ch 3. 31-36 3 attempts left Check my work Be sure to answer all parts. Tin (Sn) exists in Earth's crust as SnO2. Calculate the percent composition by mass of Sn and O in SnO2. % Sn 1219 < PievHelp ost comr X AHRQ's Healt X Illinois StateL X Mind Tap - 55750828934189288909969212&elSBN=9781305657... ☆ Q Search this References Use the References to access important values if needed for this question. A compound is found to contain 37.23 % carbon, 7.827 % hydrogen, and 54.94 % chlorine by mass. What is the empirical formula for this compound? To answer the question, enter the elements in the order presented above. Submit AnswerALEKS 65°F Sunny O STATES OF MATTER Calculating mass percent composition ✰ www-awa.aleks.com/alekscgi/x/lsl.exe/1o_u-lgNslkr7j8P3jH-IQgHIvdL2donGg9plnQUm9kiGJhghYuAiZLq5VA34Jc4anaqz7Yt3AJbDyN067TYtJjWJK3y3... component X A ALEKS - Nancy Duran - Learn X A chemist mixes 82. g of benzene with 89. g of isopropenylbenzene and 61. g of acetone. Calculate the percent by mass of each component of this solution. Round each of your answers to 2 significant digits. benzene isopropenylbenzene acetone Explanation Check mass percent 0 % % % Search New Tab x10 + X 0/5 T ENG ■ N : Nancy olo Ar IM © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility 9:09 PM 4/19/2023 X (27
- Vindexhtml? con con&extermal browser-08daunchUri-https253A252% Ch 3. 31-36 3 attempts left Check my work Click in the answer box to activate the palette. Determine the empirical formula of a compound having the following percent composition by mass: K: 24.74%; Mn: 34.76%; O: 40.50% < Prevesto.mheducation.com/ext/map/index.html? con con&external browser%308JaunchUrl%=Dhttps%253A%252F Question 11-Homewo X 31-36 3 attempts left Check my work Click in the answer box to activate the palette. Determine the empirical formula of a compound having the following percent composition by mass: K: 24.74%; Mn: 34.76%; O: 40.50% Prev0 C 1. How many GRAMS of lead (II) fluoride are present in 4.04 moles of this compound ? 2. How many MOLES of lead (II) fluoride are present in 2.16 grams of this compound? Submit Answer $ 4 888 R 70 F % 5 V [Review Topics] [References] Use the References to access important values if needed for this question. Retry Entire Group 2 more group attempts remaining Cengage Learning Cengage Technical Support F5 T G 6 MacBook Air B F6 7 Y H & 7 8 F7 U N * 8 J FB ( 9 D 1 M K DD F9 O O V L 1 H - P V grams. moles. Previous Next> Email Instructor command 4 + Save and Exit { 1 C n V12 11 ? option Update: CO delete