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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- 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 MeOHA 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.
- 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 =(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 mLBaCO3 - 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.
- 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 + HzOLU 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 2021/11/19
- y= mx+ b Slope () = -4E-09 y-intercept () = 0.4021 and OD= 0.540 , Calculate the concentration (x)10A Complete the figure below. Br NaCN DMSO B A NH₂ C 1. Br₂, NaOH 2. H₂O/H* TT. H₂SO42- Suppose a 0.025 M aqueous solution of phosphoric acid (H3PO4) is prepared. Calculate the equilibrium molarity of HPO properties of phosphoric acid in the ALEKS Data resource. Round your answer to 2 significant digits. M 0 X S ? You'll find information on the