Which compound is most likely to produce the following MS data? Please explain your problem solving arithmetic. m/z: 172 (100%), 174 (97%), 173 (6.6%), 175 (6.3%), 65 (43%), 39 (16%), 93 (15%)
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- Identify the unknown compound from the given data:The compound has only 70.5%C, 13.7%H, and 15.6%O.#9: This unknown contains 51.90 % C and 9.80 % H by mass with the remainder being an unknown element (you have to figure out what element). 100- Base 80 60 90 Relative Intensity 100 TRANSNETTANCE 40 20- O 4000 10 20 3000 30 peak 656 50 40 m/z REVENUTER 60 1300 peak 094 92-37= 90-35= C) 70 80 1000 90Do 3 and 4 only thank you. I'll upvote
- 2) As an example of precision and accuracy of data, suppose the % carbon in a single compound has been measured thrce separate times by 2 different students. The theoretical % carbon is 21.34%. Student 1: trial 1:26.11%, trial 2: 26.24% trial 3: 25.92 %, Avg - 26.09 Student 2: trial 1: 20.35%. trial 2: 22.64 % trial 3: 19.79 %. Avg = 20.93 a) Which student had the more precise data and how can you tell? b) Which student had the more accurate data and how can you tell? 3a) Calculate the % error of Student 1 data in problem 2 above. Show all work below. WATCH SIG FIGSWhat is the relative abundance of 35Cl in this sample? 42.9%, 57.1%, or 52.8%Analysis was run on samples from a known CRM with 8.85% Fe. The following results for %Fe were obtained by an analyst: 8.75, 8.51, 8.25, 8.61. Which of the following statements is true assuming none of the data points are outliers? Group of answer choices Tcalc = 63.15 The analysis is not accurate at the 95% confidence interval. Tcalc = 3.03 The analysis is accurate at the 95% confidence interval. Not enough information to determine Tcalc = 63.15 The analysis is accurate at the 95% confidence interval. Tcalc = 3.03 The analysis is not accurate at the 95% confidence interval.
- 1- Calculate the humber of grams inone mole of Ca Soy.7 Hz0?Example 2: You prepared a 0.250 M NH3 solution by diluting 8.45 (±0.04) mL of 28.0 (10.5) wt% NH3 [density = 0.899 (+0.003) g/mL] up to 500.0 (±0.2) mL. Find the uncertainty in 0.250 M. The molecular mass of NH3, 17.0306 g/mol, has negligible uncertainty relative to other uncertainties in this problem.Only Give handwritten answer otherwise I will give dislike.
- (10) You have 4 powdered samples, A, B, C, & D. One sample contains fullerenes, C16 to C70. Another is nano diamond. Another one is a mixture of C60 and carbon nanotubes. The 4th is a mixture of graphite & graphene. Indicate the analytical methods you would use to identify and distinguish the samples from each other.Pls help ASAP, thank you! "Mass spec: M = 161 (100%), 163 (33%). Which of the following is a possible molecular formula?"CHM120 Park Lab Notebook F20 Alessandra Fernandez Cuadr Desktop App O Tell me what you want to do m<而< 三 A Styles v K Tags v abc v HCI Ba(NO3)2 K2CO3 AgNO3 Pb(NO3)2 Na,so KI HNO3 4 HCI Ba(NO No 3)2 reaction K2CO3 Evolution of gas White precipitate AGNO3 White No White precipitate reaction precipitate KI No No No White reaction reaction reaction precipitate Pb(NO White 3)2 No White No Yellow precipitate reaction precipitate reaction precipitate HNO3 Evolution of No Evolution No No No gas reaction of gas reaction reaction reaction Na,so No reaction White No White No White No precipitate reaction precipitate reaction precipitate reaction 4 2. Along with written observations, write 1) the molecular equation, 2) complete ionic and 3) net ionic equations for each reaction. stv X Search or type URL * &