Fill in the chart below: [OH ) 6.41 x 104 M pH pOH Acidic or basic Write your answers for [H3O*] and [OH1] in scientific notation. Write in the following form number x 10^exponent. Example 2.3 x 10^-3. Do not put units on your answers
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- The mass of Earth's atmosphere is 5.3 x 10 metric tons. The atmospheric abundance of helium is 0.7 ppm when expressed as a fraction by mass instead of by volume, as in Table 4-1. How many metric tons of helium are there in the atmosphere? How many moles of helium is this?If the pOH of a solution is 11.6 the [H·] would be M. You only need to put a number in the blank, the units are written in for you. Please given the answer in 3 significant figures and do NOT use scientific notation.A chemist prepares a solution of iron (II) bromide (FeBr₂) by measuring out 0.50 g of FeBr, into a 100. mL volumetric flask and filling to the mark with distilled water. Calculate the molarity of Br anions in the chemist's solution. Be sure your answer is rounded to 2 significant digits. esc Fr 0 Continue 55°F Mostly clear ♫x F1 ! mol L F2 @ F3 4 F4 x10 Q Search LA X F5 % C S G F6 A 6 F7 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Acc 8 P 8 & 7 F8 OC F9 DELL prt sc F10 home Submit Assign F11 end A F12 inser
- Complete the table below. Round each of your entries to 2 significant digits. You may assume the temperature is 25 °C. formula conjugate acid Hạ BO, HBrO I Don't Know R F * % 5 Ka 5.8 x 10 0- -10 2.3 × 10 T -9 Submit G 80 B ^ 6 formula 0 C₂H₂N I Y conjugate base 0 MacBook Pro H & 7 N Kb 0 1.7 X 10 0 -9 00 8 1 M 0, X ( 9 K 0° 0.2 S O © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center ) O L P O : 1 { = 2 1Objective KTIO A chemistry student weighs out 0.0434 g of sulfurous acid (H,SO,), a diprotic acid, into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1800M NAOH solution. Calculate the volume of NaOH solution the student will need to add to reach the final equivalence point. Round your answer to 3 significant digits. mt. I Don't Know Submit 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility Launcher Lenovo$ F4 An aqueous solution of 2.87 M hydrochloric acid, HCl, has a density of 1.05 g/mL. The percent by mass of HCl in the solution is %. Submit Answer % 5 T G F5 Retry Entire Group 9 more group attempts remaining 6 Cengage Learning | Cengage Technical Support Y H [Review Topics] [References] Use the References to access important values if needed for this question. MacBook Air F6 & 7 gilinent-take F7 8 00 1 DII FB K ( 9 F9 0 L ) O A F10 P Chapter Previous + 11 X Next ☐ Save and Exit OWLY S deles
- A student prepares a 1.1 mM aqueous solution of 4-chlorobutanoic acid (C3H6CICO₂H). Calculate the fraction of 4-chlorobutanoic acid that is in the dissociated form in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. % x10A 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 chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 1.1 x 10" µmol of iron(II) bromide into a 150. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's iron(II) bromide solution. Round your answer to 2 significant digits. mol x10 Continue Submit Assignment 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility I'm We %23 $ % & 3 4 5 6 7 8 R
- 6. [OH]=3.5 x 10² M. Notes: # of significant figures in the answer. 7. [NAOH] = 2.0 x 10 M. Notes: What is the [OH] 8. [Ca(OH)2] = 1.0 x 10³ M. Notes: Can do this in your head? What is the [OH]View Assessment ← C Pri Ter Acc X 13 minutes remaining Question 1 blackboard.matc.edu/ultra/courses/_525703_1/outline/assessment/_1556 Blank 1 X Blank 2 Blank 3 All answers must have the correct units. Watch your significant digits! A 55.0 g sample of sugar (C12H22011) is dissolved in 170. g of water. a. What is the mass of the solute? Blank 1 g b. What is the mass of the solvent? Blank 2 g c. What is the mass of the solution? Blank 3 g d. What is the percentage by mass of this solution? (% m/m) Blank 4 % Blank 4 Add your answer Add your answer Add your answer Add your answer Courses Last saved 12:59:40 PM X Questions Filter (6) ▼ + K First < Previous NextA student prepares a 6.6 M aqueous solution of 4-chlorobutanoic acid (C,H, CICO,H). Calculate the fraction of 4-chlorobutanoic acid that is in the dissociated form in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. Ba X