Normal saline, a 0.90 %(w/v) solution of salt (NaCl)in water, is often used as an IV carrier fluid in hospitals. Calculate the volume of this solution that contains 345. mg of NaCl. Be sure your answer has a unit symbol and is rounded to the correct number of significant digits. Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility

Normal saline, a 0.90 %(w/v) solution of salt (NaCl)in water, is often used as an IV carrier fluid in hospitals. Calculate the volume of this solution that contains 345. mg of NaCl. Be sure your answer has a unit symbol and is rounded to the correct number of significant digits. Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question 7 Consider the following prescription: Promethazine HCI 62.5 mg Nacl qs SWFI ad 50 mL Make isoton. soln. The E-value of promethazine HCl is 0.18. How many milligrams of sodium chloride should be used in compounding the prescription? (Your answer must be numeric. Do not include units. Round to the nearest whole number.) 1200
Report 2 decimal places for all your answers. Do NOT include units in your answer. BaCl₂ H₂O 208.23 Mass of anhydrous BaCl₂ (amu) Mass of H₂O molecules in Hydrate (amu) Mass of Hydrate (amu) Percent H₂O in Hydrate (%) O BaCl 208.23 0.00 At n 208.23 plete the table. 0.00 % 18.02 226.25 7.97% Select one: O a. BaCl, • H2O O b. BaClz • 2 H2O O c. BaCl2 • 3 H2O O d. The data is inconclusive: it could be either BaCl₂ H₂O OR BaCl₂.2 H₂O O e. The data is inconclusive: it could be either BaCl₂ 2 H₂O OR BaCl₂ 3 H₂O BaCl₂ 2 H₂O 208.23 51°F 36.04 244.27 14.8 0 % Compare the experimental percent water you calculated for the barium chloride hydrate in the Question 6 in this assignment (above) with the theoretical percent water values calculated from the possible formulas in the table above. Do you think that the formula for hydrate is BaCl₂ H₂O, BaCl₂ 2 H₂O, or BaCl₂3 H₂O? End BaCl₂ 3 H₂O 208.23 PgUp 54.06 262.29 20.6 40) % J 6 Manage 9:44 PM 10/9/2022 PgDn
estion 10 A solution of methanol (CH3OH, MM - 32.042 g/mol) dissolved in ammonia (NH3. MM - 17.034 gimol) has a concentration of 5.1 m. What is the mole traction of the solute Report your answer to three decimal places.
soution B has more sugar that solution A. Solution B has 30%sugar and solution A has 10% sugar. what are the percentage of water? A. A= 10% water, B= 30% water B. A= 20% water, B= 60% water C. A=80% water, B=40% water D. A=90% water, B=70% water
Achemist adds 1.35 L of a 1.72 mol/L sodium thiosulfate (Na₂S₂O3) solution to a reaction flask. Calculate the mass in kilograms of sodium thiosulfate the chemist has added to the flask. Be sure your answer has the correct number of significant digits. kg Explanation Check 80 x10 X 888 S FS MacBook Air FO ? DI FR olo 18 Ar 8- 11242 © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility I F11
Macmillan Learning A solution of CaCl₂ in water forms a mixture that is 28.5% calcium chloride by mass. If the total mass of the mixture is 631.1 g, what masses of CaCl, and water were used? mass of CaCl₂: mass of water: g g
||| O STOICHIOMETRY Using molarity to find solute mass and solution volume A chemist adds 90.0 mL of a 1.41M aluminum chloride (AIC13) solution to a reaction flask. Calculate the mass in grams of aluminum chloride the chemist has added to the flask. Be sure your answer has the correct number of significant digits. g Explanation Check . === x10 X S JUL 19 4 m 0/3 tv tv♫♬ Kirst 2022 McGraw Hill LLC All Dinhte Docenied Torme of Lleo Privacy Center | Ac Nall A J N.
Part D: number of moles?
A chemist prepares a solution of magnesium fluoride (MgF,) by measuring out 9.9 mg of magnesium fluoride into a 350. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's magnesium fluoride solution. Round your answer to 2 significant digits. mol L x10 ? Explanation Check O 2022 McGraw Hill LLC All Rights Reserved. Terms of Use Privacy Center Accessiblty 80 F Cloudy DELL PriScr Delete Insert F11 F12 F5 F6 F7 F8 F9 F10 F1 F2 F3 F4 Hum. Lock 44 Backspace & 8. %24
Harrison Objective Knowiedge Check A chemist adds 410.0 mL of a 01517 pe1 sodium thiesuliate (Na.S.0. Solution to a reaction flask. Calculate the mass in grams of sodium thiosulfate the chemist has added to the flask. Round your answer to ignificant digits