Please help! I've been stuck for a while. Keep in mind the sig figs. i'll literally give you a thumbs up. TYSM :) ### Understanding Molarity Changes Due to Evaporation**Problem Statement:**A biochemist carefully measures the molarity of salt in 84.1 mL of photobacterium cell growth medium to be 46.4 mM.Unfortunately, a careless graduate student forgets to cover the container of growth medium and a substantial amount of the solvent evaporates. The volume of the cell growth medium falls to 30.9 mL. Calculate the new molarity of salt in the photobacterium cell growth medium. Round each of your answers to 3 significant digits.**Solution:**To solve for the new molarity after the evaporation of the solvent, we can use the formula:\[ C_1V_1 = C_2V_2 \]Where:- \( C_1 \) = initial concentration (46.4 mM)- \( V_1 \) = initial volume (84.1 mL)- \( C_2 \) = final concentration (unknown)- \( V_2 \) = final volume (30.9 mL)First, rearrange the formula to solve for the final concentration (\( C_2 \)):\[ C_2 = \frac{C_1V_1}{V_2} \]Plug in the known values:\[ C_2 = \frac{46.4 \, \text{mM} \times 84.1 \, \text{mL}}{30.9 \, \text{mL}} \]Calculate \( C_2 \):\[ C_2 \approx \frac{3901.04}{30.9} \approx 126.2 \, \text{mM} \]Therefore, the new molarity of the salt in the photobacterium cell growth medium after evaporation is approximately **126 mM** (rounded to three significant digits).**Interactive Element Explanation:**The interactive element provides a box where users can input the calculated molarity in mM (millimolar). There are two buttons available:- A checkmark button (✓) to submit the answer.- A refresh button to reset and recalculate if needed.This problem is an excellent example of how changes in volume can affect the concentration of solutions, which is a fundamental concept in chemistry and biochemistry.

Answered: Image /qna-images/answer/80de3ec5-ad34-4fd5-b714-7c3b6f493b14.jpg

A biochemist carefully measures the molarity of salt in 84.1 mL of photobacterium cell growth medium to be 46.4 mM. Unfortunately, a careless graduate student forgets to cover the container of growth medium and a substantial amount of the solvent evaporates. The volume of the cell growth medium falls to 30.9 mL. Calculate the new molarity of salt in the photobacterium cell growth medium. Round each of your answers to 3 significant digits. ☐mM 0 x10 X S

A biochemist carefully measures the molarity of salt in 84.1 mL of photobacterium cell growth medium to be 46.4 mM. Unfortunately, a careless graduate student forgets to cover the container of growth medium and a substantial amount of the solvent evaporates. The volume of the cell growth medium falls to 30.9 mL. Calculate the new molarity of salt in the photobacterium cell growth medium. Round each of your answers to 3 significant digits. ☐mM 0 x10 X S

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter16: Solutions

Section: Chapter Questions

Problem 16.3TC

See similar textbooks

Similar questions

you can only work on it for 90 mins Instructions Multiple Attempts Not allowed. This test can only be taken once. Force Completion This test can be saved and resumed later. Your answers are saved automatically. * Question Completion Status: A Moving to another question will save this response. Question 28 10 Calculate the molarity of the resulting solution prepared by diluting 25.0 mL of 18.0% ammonium chloride, NH 4CI, (density = 1.05 g/mL) to a final volume of 80.0 mL. O a. 0.0536M O b.0.00105 M OC. 1.10 M O d.0.059 M O e.0.292 M » A Moving to another question will save this response. acer
Help Discussions List > View Topic * Settings Solution_Chemistry CH.8 Unlocked: Monday, February 8, 2021 12:00 AM CST - Friday, February 12, 2021 11:30 PM CST. Must post iise. * Subscribe 1. If you have a solid solute dissolving in a liquid solvent: a) Name the 3 things that will increase the RATE of solution formation. b) What are the 2 things you change for the reaction conditions if the solute was a gas to increase the solubility? 2a. Calculate the %(m/m) of 86.9g KBr dissolved in 550. g H20. 2b. Calculate the %(m/m) be if the KBr was dissolved to make a 550.g solution instead? 3a. What is the Molarity of a solution made by dissolving 7.65g Ca(OH)2 in 750.mL solution: 3b. In addition, what is the Osmolarity of this solution? Start a New Thread Sort by: Filter by: All Threads v Most Recent Activity You must start a thread before you can read and reply to other threads
Pls help ASAP ON ALL ASKED QUESTIONS PLS PLS
Example 3. A calcium chloride solution was prepared and its conductivity was measured to be 2354 µS/cm. Calculate CaCl2 concentration (mM). Start with a balanced solubility equation.
Solve this problem as fast as possible
Please answer the second jpg, the first jpg is for context
Which of the following best explains why a beam of light passing through a soap solution can be observed, but one passing through a solution of sugar cannot be seen? Select the correct response: Tyndall effect Electric charge effect Adsorption Brownian movement
Sketch a solubility curve for a solid in water be sure to label the axis and describe the trend. в I U Format ... Add a File Record Audio Record Video
This the last question u guys gotta help me on so please hurry up!!
Help
7a) Calculate the number of grams of hydrogen peroxide contained in 25.0 mL of a 3.60 M solution. 7b) What mass of a 30% (w/w) hydrogen peroxide solution is required to provide the mass calculated in question 7a? A w/w solution means g solute/100 g solution. Hint: You need to use your previous answer to 3 sig figs to get this answer to 3 sig figs. Your answer should have 3 sig figs.
You are asked to prepare a 1.000 L solution of 4.5 M you commit a user error while preparing this solution. Assumed volume Volumetric error Preparation details Added water 2.0 cm above the line, which corresponds to 8.2 mL (0.0082 L) additional solution volume C6H12O6 (glucose; molar mass = 180.16 g/mol) in a lab by dissolving 811.0 g of glucose in water. Consider the following two scenarios in whic Prepared in a beaker Prepared in a volumetric flask 1.000 L You add the glucose to a volumetric flask and then add water until it dissolves. The water bottle you are using has a worn tip, and you inadvertently add too much water such that the meniscus is above the line. The diameter of the neck of the volumetric flask is 2.29 cm. 811.0 g glucose Concentration: You decide to evaluate and compare the errors you made while preparing the solutions using the different methods. Calculate the actual concentrations of the intended 4.5 M glucose solutions prepared by each method based on their…