P1000 Weight 1 (g) Weight 2 (g) Weight 3 (g) Weight 4 (g) Weight 5 (g) 1000 µl 1.1 0.95 0.94 0.98 0.97 100 μι 0.10 0.14 0.11 0.10 0.11 Does this micropipette pass validation? Show your workings and comment on how you reached your decision
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- A student wanted to determine the moisture content of a solid sample using gravimetric methods following the AOAC 930.15 method. The following data were obtained: mass of crucible (container): 24.6743 g initial mass of crucible and sample: 34.2134 g final mass of crucible and sample: 32.0567 g Calculate the %moisture of this sample. Show your entire solving process. You may upload a photo of your solution or you may just type it in.2 Automobile air bags inflate following a serious impact. The impact triggers the following chemical reaction. 2NaN3 (8)→ 2 Na(s) + 3N₂ (9) S W stry.com/myct/itemView?assignmentProblemID=213377858&attemptNo=2&offset=next X 7 # 3 E D 80 C $ 4 R 888 F V % 5 FS T Y G A Part A 6 B If an automobile air bag has a volume of 11.2 L, what mass of NaN3 (in g) is required to fully inflate the air bag upon impact? Assume STP conditions. IVE ΑΣΦ Provide Feedback m = Submit MacBook Air F6 Y H & 7 Request Answer N 40 U J * 8 @ C PwC FB I M ( 9 K DD ? O ) O g L command 3 F10 P . : ; Review I Constants I Periodic Table I { + [ option = 11 ? 1 I 323) Next > 1 deletes/Interface/acellus engine.html?ClassID=14676880634 IS C₂H4 (g) + O₂(g) → CO₂(g) + H₂O(g) [g 17.11g 15.69 g 6.42 g According to the law of conservation of mass, what is the mass of ethene, C2H4, burns in this reaction? D Use the correct same precision for the missing value. (i.e. significant figures). International Academy of Science. All Rights Reserved. * G Enter A
- 351145 TECHNO Define fundamental unit with an example. Why is the unit of force called a derived unit? ic a derived unit? Give its two examples. measurement Dats : D Graphite and iodine a y shine. Explain it with suitable yeasons. Graphite and are non-metals but the iodine are non- metals but REDMI NOTE 10 PRO KBYLWHARNA THAPA A chemical propertie39/99/2021 17:36Question 4 Convert 81.9x10-6 Matm to psi. Give your answer in scientific notation (e. g. 1.23E4 instead of 12340). Question 5 1 atm = 14.7 psi Convert 4.35 uft (microfeet) to nin (nanoinches). Give your answer in scientific notation (e. g. 1.23E4 instead of 12340). Question 6 1 ft = 12 in Convert 2.3 m³ to mL. Give your answer in scientific notation (e. g. 1.23E4 instead of 12340).Inbc X (531 X Con X I Bala X Ans X Inbc X CHE X 101 Che X С Ч-С х b My x Unk X Sea X E I ma X app.101edu.co/# Bryant's Gmail Cascadia Canvas Lo... T GSBA Scholarship L... HOMEGROWN TRA... Learn Touch Typing... C The Science of Well... Investor360° ® Login ClickUp Reading list >> Question 7 of 40 Submit Which of the following compounds can form intermolecular hydrogen bonds? A) CH4 B) H2Se C) NH3 D) H2 E) All of these compounds can form hydrogen bonds. 10:36 AM e Type here to search 64°F 小 8/26/2021 (8)
- Chem 101-Midterm exam 2 (2) Hi Ferit, when you submit this form, the owner will be able to see your name and email address. Calculate the mass of the air contained in a room that measures 1.50 m x 2.50 mx 3.00 m (density of air = 1.82 g/dm3 at 25°C). (8 Points) 20.475 kg 30.273 kg O 10.578 kg 47.88 kg A metal melts at 545.0°C. What temperature is this in K and °F? (7 Points)A student decided to undertake a balance calibration exercise during a lab session involving burette calibration. He found the apparent weight of calcium carbonate in air to be 100 grams and density to be 1.33g/mL. Assume that the standard steel weight used in the calibration has a density of 8.0g/mL and air has a density of 0.0012g/mL. What would be the true mass of the calcium carbonate sample?For each problem, you must: 1) Calculate the degree of unsaturation. -1 2) Assign the principal IR absorption bands above 1500 cm 3) Draw the structure of the compound 4) Label the protons on your structure with letters and assign them to peaks on the NMR spectrum (see the example below). 4.0 C 2H 3.5 3.0 2.5 D 1H 3.0 This peak is a magnified version of this peak A 2.8 2.0 1H B zum 2.6 B 2H Each problem contains the formula of the compound, the IR spectrum (with axes in cm³¹ vs. % transmission), and the ¹H NMR spectrum (with axis in PPM shift). Some NMR spectra show a peak hovering above the baseline. This is a magnified view of one of the actual peaks, to allow you to see splitting more clearly. 1.5 2.4 OHD A 3H 1.0 PPM 0.5
- + e Home ourse.html?courseld=15539865&HepID=676f177415469ec3dc78ff3c8 bf724d9#1 0001 Inbox-Outlook We... S Sugarpill Cosmetic... Shop | Origami Owl Wholesale Glass M... S The Corinthian Hou... zed Invitat... HW Provide Feedback P Pearson Contact Us Copyright 2019 Pearson Education Inc. All rights reserved. Terms of Use Privacy Policy | Permissions MacBook Air »)) DD DII O00 F12 F11 F10 F9 F8 F7 F4 F6 F5 F3 + $ & 3 0 9 4 7 8 6 5 } { P E U R Y D L K G F H T 2LOme x C Thermo X Cosmet x C Laptops x M Inbox (7 X C Buy TCL X learn.canterbury.ac.uk/ultra/courses/_19016_1/outline/edit/document/_3537106_1?courseld=_19016_1&view=content T K Saturat X ZA a Amazon x C Show Ye X G what's a X Email- 1 X ☆ b The dia x h EX E ct the rato at which + 4. Consider the interconversion of A and B. Suppose in the absence of an enzyme, the forward rate constant KF is 104 s¹ and the reverse rate constant KR is 106 S¹. Calculate the equilibrium constant K. How would the presence of an enzyme affect the value of K? K+ A. Measurement of Liquid Equipment Measured Volume Actual Volume 250 mL Beaker 100 mL 101 mL 125 ml Erlenmeyer flask 100 mL 95 mL Use the following equation and calculate the percent error (% error) in volume а. measurement of the beaker. Show work in space provided. % Error = 100 x (Measured Value -Actual Value) / Actual Value b. Use the following equation and calculate the percent error (% error) in volume measurement of the Erlenmeyer flask. Show work in space provided. % Error = 100 x (Measured Value -Actual Value) / Actual Value