A biochemist carefully measures the molarity of salt in 34. mL of photobacterium cell growth medium to be 30. 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 2.2 mL. Calculate the new molarity of salt in the photobacterium cell growth medium. Be sure your answer has the correct number of significant digits. OmM

A biochemist carefully measures the molarity of salt in 34. mL of photobacterium cell growth medium to be 30. 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 2.2 mL. Calculate the new molarity of salt in the photobacterium cell growth medium. Be sure your answer has the correct number of significant digits. OmM

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...

See similar textbooks

Similar questions

A chemist makes 260. mL of iron(III) bromide (FeBr,) working solution by adding distilled water to 160. mL of a 1.88 mol stock solution of iron(III) bromide in water. Calculate the concentration the chemist's working solution. Be sure your answer has the correct number of significant digits. mol x10 L
A chemist must prepare 450.mL of 370.mM aqueous potassium permanganate KMnO4 working solution. She'll do this by pouring out some 0.385M aqueous potassium permanganate stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in mL of the potassium permanganate stock solution that the chemist should pour out. Be sure your answer has the correct number of significant digits.
A chemist must prepare 775. mL of 1.00 M aqueous calcium bromide (CaBr₂) working solution. He'll do this by pouring out some 7.04 M aqueous calcium bromide stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in mL of the calcium bromide stock solution that the chemist should pour out. Be sure your answer has the correct number of significant digits. 0 mL x Ś
A chemist makes 580.mL of iron(III) bromide FeBr3 working solution by adding distilled water to 110.mL of a 2.43M stock solution of iron(III) bromide in water. Calculate the concentration of the chemist's working solution. Be sure your answer has the correct number of significant digits.
A chemist prepares a solution of silver perchlorate (AgClO,) by weighing out 2.40 kg of silver perchlorate into a 500. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in g/dL of the chemist's silver perchlorate solution. Be sure your answer has the correct number of significant digits. x10 đL
A chemist must dilute 14.9mL of 1.88M aqueous sodium carbonate (Na2CO3) solution until the concentration falls to 1.00M. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in milliliters. Round your answer to 3 significant digits.
A certain liquid X has a normal boiling point of 105.70°C and a boiling point elevation constant =Kb2.16·°C·kgmol−1. A solution is prepared by dissolving some potassium bromide (KBr) in 400.g of X. This solution boils at 107.3°C. Calculate the mass of KBr that was dissolved. Round your answer to 2 significant digits. ____g
A chemist makes 460. mL of magnesium fluoride (MgF₂) working solution by adding distilled water to 170. mL of a 1.39 - stock solution of magnesium mmol L fluoride in water. Calculate the concentration of the chemist's working solution. Be sure your answer has the correct number of significant digits. 0×100 mmol L ?
Please put the right number of significant figures
umol A chemist must prepare 975. mL of 16.0 µM aqueous silver(II) oxide (AgO) working solution. He'll do this by pouring out some 28.3 aqueous silver(II) oxide stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in mL of the silver(II) oxide stock solution that the chemist should pour out. Round your answer to 3 significant digits.
Earth's oceans have an average depth of 3800 m, a total area of 3.63 x 10 km², and an average concentration of dissolved gold of 5.8 × 10. If a recent $987.00 troy oz what is the value of gold in the oceans? (I troy oz 31.1 g) Round your answer to 2 significant figures. Note: Reference the SI prefixes and Unit conversions for derived SI units tables for additional information. price of gold was 0
A chemist prepares a solution of potassium permanganate (KMnO4) by measuring out 10. μmol of potassium permanganate into a 200. mL volumetric flask and filling the flask to the mark with water.Calculate the concentration in mol/L of the chemist's potassium permanganate solution. Round your answer to 2 significant digits.