Question 1HomeworkComplete the mass data table given below.B IX, x'n UndoC Start OverO RowColumnTable TitleMass data tableColumn 1Column 2Column 3Data set nameTrial 1Trial 2Mass of empty crucible and cover25.165 g24.931 gMass of cover10.731 g10.278 gMass of magnesium ribbon0.350 g0.375 gMass of magnesium ribbon, crucible,14.784 g15.028 gMass of magnesium ribbon, crucible,25.745 g25.522 gmass of product0.580 g0.591 gmass of oxygen0.230 g0.216 gAnsweredA ResubmitQuestion 2HomeworkCalculate the Empirical formula for Trial 1 by completing the table given below.B I X, x' 2-n UndoC Start OverColumnRowTable TitleCalculate the Empirical formula for Trial 1Column 1Column 2Column 3Column 4Column 5Trial 1gramsMolar massmolesmolar ratioMg Question 3HomeworkCalculate the Empirical formula for trial 2 by completing the table given below.B I X, x'n UndoC Start OverColumnRowTable TitleCalculation of Empirical formula for Trial 2Column 1Column 2Column 3Column 4Column 5Trial 2gramsMolar massmolesmolar ratioMgUnansweredSubmitQuestion 4Homework • UnansweredThe correct Empirical formula for this compound is_Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.MgoabMgO2Mg,02UnansweredA Submit

Mass of Mg + Mass of O = Mass of product Also, No of moles = Mass / Molar mass

Answered: The correct Empirical formula for this…

The correct Empirical formula for this compound is Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. Mgo a b MgO2 Mg,02

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter9: Chemical Quantities

Section: Chapter Questions

Problem 29QAP: When elemental carbon is burned in the open atmosphere, with plenty of oxygen gas present, the...

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H ← OneLogin C ||| = O CHEMICAL REACTIONS Calculating and using the molar mass of elements mol Explanation D21 ALEKS Homework- CHM1045 GE X www-awa.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IBcn9hvCfbYq_fi3Zsn8H20W_5PTMI0acVC-U A chemist weighed out 6.64 g of gold. Calculate the number of moles of gold she weighed out. Round your answer to 3 significant digits. At Check P A ALEKS-Xzavian Patrick - Learn X S X + Ⓒ2022 McGraw Hill LL
gate t Teams oft Teams gs Wave Course rials ere to search @ A 0.000937 g sample of an unknown compound, composed only of carbon and hydrogen, produced 0.00274 g of CO₂ and 0.00168 g of H₂O in a combustion analysis. What is the empirical formula of the unknown compound? Provide your answer below: F3 # 3 O F4 $ 100 F5 % 5 D F6 A 6 199 F7 ▶/11 F8 & 7 7 U 4 FEEDBACK * 8 8 F9 1 Rain off and on F10 9 MORE INSTRUCTION Activate 9 F11 0 11 Go to Settings to activate Windows F12 40) ENG 11:07 PM 10/31/2022 C Backs
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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 :
Data and Observations Table 2.1 Mass of powdered samples. Sample description: pulverized ferrous sulfate tablets Sample Mass, g 1 0.4972 g 2 0.5483 g 0.5214 g 3
mmunity College X x || X D2L ALEKS Learning Module 8 (due A X A ALEKS- Jessica Sceusa - Learn X G Write the empirical formula for a x + www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-lvWyv8WYLP6W0cqJcWJdIACROQwyw24GWHInCX70-Q0WaoxQiZ3DF-1EgBJkRS45QbFh_mdu6pQMT19A08TrT_6p5Ces O ||| O STATES OF MATTER Using the combined law gas Student - Home kPa For many purposes we can treat ammonia (NH3) as an ideal gas at temperatures above its boiling point of -33. °C. Suppose the temperature of a sample of ammonia gas is lowered from 19.0 °C to -25.0 °C, and at the same time the pressure is changed. If the initial pressure was 0.30 kPa and the volume decreased by 40.0%, what is the final pressure? Round your answer to 2 significant digits. Explanation Check X10 X K 0/5 © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Cent
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1.Calculate the percentage composition by mass g tue follooing compounds tat are important Starting naterials for dyntctie (4). C3 Hy 0z C acrylic acid from whicu acrylić plastics are made) (b). C, H, O. (metuyl acrylate, firom whicu plexiglas is macde) 5: Cs H3 N (acrytonitrile, from which orlon is madle) polymers.