Method Mass (g) Veylinder Veylinder (mL) Deylinder (g/mL) % error Digital Calipers Water mm mL Displacement 4. Explain why 1 cm 10 mm, but 1 cm 1000 mm'. You can use words and/or equations/math in your explanation! (2 pts)
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- A chemist measured the concentration of a solution three times and obtained the following results (in mol/L): 0.0147, 0.0146, 0.0148. Do the results appear precise, accurate, or neither? Explain. avenge =.0147 (pdimus.co 120 Doy Jine What information would you need for the results to be both precise and accurate? If the true value is 0.0149, calculate the percent error.For Si to which has had added 5.0 x 10 at% of arsenic, calculate the number of As atoms per cubic meter. (Hint: use Ea NAC CLA +A(100 C1) P2 ! atoms/mOH Br OH NEt3 DCM SOCI 2 (0.5 equiv) NEt3 DCM, RT MeONa MeOH
- A mixture that is 5.2x10-2 M in NaC,H3O2 and 5.4x10-2 M in Ba(C2 H302)2- Express your answer using two significant figures. ? (OH ]: M !! Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part F Express your answer using two decimal places. pH =BaCO3 - Ba2+ + CO3? reaction was given. It is known that the carbonate anion is hydrolyzed in [HCO ][OH] [co? ] CO3- + H20 = HCO; + OH Kb1 and [H2CO3][OH¯] [HCO3] HCO; + H2O = H;CO3 - OH- Kb2 = form. Since Ka1 = 1.44x10-7, Ką2 = 4.7x10-11 and KspBaco3 = 5.1x10-9, calculate the solubility of BaCO; salt at pH = 8 and 12 depending on the pH value.(A=)=0.0025 mL = 110 x 10-4 X² (0.025 +0.0258) = 0.0492 = 14 +Tog LOH]- 1.4 x 10-4 0-0492 = 14-523 = 8.27 = 7-14×10" = x², 00492 3. If 50.00 mL of 1.00 M HC₂H₂O₂ (K = 1.8 x 105) is titrated with 1.00 M NaOH. What is the pH of the solution after the following volumes of NaOH have been added? a) 0.00 mL b) 25.00 mL c) 49.90 mL d) 50.10 mL
- Hi, Lab. A 5.00 mL sample of vinegar (dilute HC2H2O2) required 28.45 mL of 0.125 N NaOH for reaction. The density of the vinegar is 1.02 g/mL Calculate the % (w/w) of acetic acid in vinegar. Thank you,6. _(6a)_ 2CUSO4. + 4NaOH » CH:COOH ±_(6b)__ + 2NA2SO4 + HzOy= mx+ b Slope () = -4E-09 y-intercept () = 0.4021 and OD= 0.540 , Calculate the concentration (x)
- LU eFu X NCH X NCH X ь Му х LU Oef x LU Oef x U Oef x LU Oef x n Oef x U Oef x A 202 x Oef X h Mic x A docs.google.com/forms/d/e/1FAlpQLSfSGcE8gf218c6JoHMWME1A8Nydf8M4g1yG93D-2LPpoMij_g/formResponse Question 17: Which type of compound reacted to form the product in Figure 17 from benzene? * Ketone Aldehyde Acyl halide Haloalkane Carboxylic acid Figure 17 AICI, + 09:04 P Type here to search 25°C Sunny 2021/11/1910A Complete the figure below. Br NaCN DMSO B A NH₂ C 1. Br₂, NaOH 2. H₂O/H* TT. H₂SO4Milliliters of isopropanol = mL Submit Part C How many liters of a 3.32 MK2SO4 solution are needed to provide 58.1 g of K2 SO4 (molar mass 174.01 g/mol)? Recall that M is equivalent to mol/L. Express your answer to th ree significant figures. View Available Hint(s) ? ΑΣΦ P Pearson Permissions Contact Us Copyright C2019 Pearson Education Inc. All rights reserved.| Terms of Use IPrivacy Policy F12 F11 II F8 F10 F9 F7 F6 F5 F4 F3 & A +II t