Solution:
Definition of moles is
Moles = molarity x volume = 9.48 x 10-3 x 0.0116 L = 0.00011 moles.
Thus, moles of HCl is 0.00011 moles.
Mass of HCl = moles x molar mass
Mass of HCl = 0.00011 x 36.5 = 0.0040 g
Part B Gastric acid pH can range from 1 to 4, and most of the acid...
Part B Gastric acid pH can range from 1 to 4, and most of the acid is HCl. For a sample of stomach acid that is 1.07x10-2 M in HCl, how many moles of HCl are in 13.5 mL of the stomach acid? Express the amount to three significant figures and include the appropriate units. View Available Hint(s) ? DI MÅR Value O 2 Units amount of HCI = amount of HCl = Submit
Gastric acid pH can range from 1 to 4, and most of the acid is HCl. For a sample of stomach acid that is 2.53 Times 10^-3 M in HCl, how many moles of HCl are in 12.7 mL of the stomach acid? Express the amount to three significant figures and include the appropriate units.
Part B Gastric acid pH can range from 1 to 4, and most of the acid is HCI. For a sample of stomach acid that is 6.95x10- Min HCl, how many moles of HCl are in 12.9 mL of the stomach acid? Express the amount to three significant figures and include the appropriate units. View Available Hint(s) DHMÄ ? amount of HC1 = Value Units Submit The concentrations of solution are typically described as a ratio of the amount of...
Gastric acid pH can range from 1 to 4, and most of the acid is HCl. For a sample of stomach acid that is 1.42×10−2 M in HCl, how many moles of HCl are in 18.3 mL of the stomach acid?
Lecture Homework Chapter 09 1 of 3 Review Constants Periodic Table of Concentration: Molarity and Mass Percent ution (% or wt%) Concentration values can erve as conversion factors that allow you to onvert between the amount of solute and its corresponding amount of solution Examples of anits of concentration are shown below for an equivalent ratio of potassium iodide (KI) amount over solution amount Part B Gastric acid pH can range from 1 to 4 and most of the acid...
<Week 12 Gases part 2 and Solutions Units of Concentration: Molarity and Mass Percent 41 of 73 > * Review Constants Periodic Table Gastric acid pH can range from 1 to 4, and most of the acid is HCL For a sample of stomach acid that is 3.16-10-2 Min HCI, how many moles of HCI e in 19.8 ml of the stomach acid? Express the amount to three significant figures and include the appropriate units. View Available Hints) The concentrations...
Part A Potassium cyanide is a toxic substance, and the median lethal dose depends on the mass of the person or animal that ingests it. The median lethal dose of KCN for a person weighing 145 lb (65.8 kg ) is 7.27×10−3 mol . What volume of a 0.0820 M KCN solution contains 7.27×10−3 mol of KCN? Part B Gastric acid pH can range from 1 to 4, and most of the acid is HCl. For a sample of stomach...
Part A Five different substances are given to you to be dissolved in water. Which substances are most likely to undergo dissolution in water? Check all that apply. sodium fluoride, NaF propanol, CH3CH2CH2OH hexane, C6H14 potassium iodide, KI heptane, C7H16 Part B Gastric acid pH can range from 1 to 4, and most of the acid is HCl. For a sample of stomach acid that is 8.22×10−3 M in HCl, how many moles of HCl are in 19.7 mL of...
Problem 11.130 - Enhanced - with Fee The daily output of stomach acid (gastric juice) is 1000 to 20 Enhanced - with Feedback - Clinical Applications 1.44 You may want to reference (Pages 406 ant to reference (Pages 406 - 409) Sections 11.7 while completing this pro Prior to a meal, stomach acid (HCl) typically has a pH of Part A What is the (H3O+] of stomach acid? Express the concentration to two si ANSWER: oncentration to two significant figures...
What is the pH after 0.150 mol of HCl is added to the buffer from Part A? Assume no volume change on the addition of the acid Express the pH numerically to three decimal places. ► View Available Hint(s) ROO? V AE pH= 5.81 Submit Previous Answers X Incorrect; Try Again You used the final concentration of HA (after the addition of HCI), but you used the initial concentration of A You may want to review Hint 3. Determine the...