Molarity Study guides, Class notes & Summaries

CHEM 104 Experiment 4: Molarity of Vitamin C - Portage Learning Purpose: The purpose of this lab is to determine a better understand of solutions and concentrations relating to vitamins, specifically vitamin C or ascorbic acid. In order to do so, we measured the vitamin C in a few different fruits to determine the concertation of vitamin c in each. Procedure: Part 1: Determining the vitamin c concentration of iodine 1. Iodine was placed in a buret. 2. A solution was made from the commercial vit...

CHEM 120 Week 3 DQ 2 Molarity and Solutions Correctly Answered /LATEST UPDATE VERSION/ GRADED A+

CHEM 120 Week 3 DQ 2 Molarity and Solution Correctly Answered /LATEST UPDATE VERSION/ GRADED A+

density formula -d = m/v m = mass v = volume temp conversions -K = C + 273 C = 5/9 (F - 32) F = (C x 9/5) + 32 average atomic mass formula -(mass A)(% abundance) + (mass B)(% abundance) molecular mass formula -(mass A)(# of atoms A) + (mass B)(# of atoms B) mass of element formula -(mass of element in sample / total mass of sample) * 100 molarity with moles formula -M = n/v M = molarity n = moles of solute v = liters of solution molarity with mass formula -(M)(m...

BioChem 210 Module 2 Exam - Portage Learning 1. The pH of a solution of 0.0010 M NaOH is:: 11 (Kw=[H+][OH-] = 1.0 x 10-14; [H+][0.0010] = 1.0 x 10-14 [H+]=1.0 x 10-11; pH=-log[1.0 x 10- 11]=11) 2. Water is a unique molecule. Which of the following contributes to water's unique place in the chemical world?: All of the answers are correct 3. The bent shape of water is due to ______________.: The unshared electron pairs on the oxygen atom 4. Which diagrams correctly represent ...

Directions: Follow the instructions to go through the simulation. Respond to the questions and prompts in the orange boxes. Vocabulary: dipole, dipole-dipole force, dipole-induced dipole force, electronegativity, intermolecular force, ionic bond, London dispersion force, molecule, nonpolar, nonpolar covalent bond, partial charges, polar, polar covalent bond, valence electron Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. A big bully is having a tug-of-war with a small chil...

AP Biology - The Chemistry of Life Latest Update Already Passed 4 classes of organic molecules 1. carbohydrates 2. proteins 3. lipids 4. nucleic acids acid substance that increases the molarity of hydrogen ions in a solution, decreasing pH (simultaneously diminishes the molarity of hydroxide ions, because product of the molarities of both is always 10^-14) adhesion the tendency of water molecules to stick to other substances; enables transportation of H2O against gravity in vascular...

Final Certification for CHEM 1212 Exam 2 Q&A What is Molarity and the units for molarity? - CORRECT ANSWER-M=moles of solute/liters of solution, units are mol/liter What is Molality and the units for molality? - CORRECT ANSWER-m= moles of solute/moles of solvent, units are mol/kg What is Mass Percentage or Weight Percent and the units for mass percentage or weight percent? - CORRECT ANSWER-Mass %= (mass of solute/total mass of solution) x 100 What is Mole Fraction and the units for...

Which of the following is the percent concentration of a solution (w/v) containing 300g of MgCl2 dissolved in 2.5L of distilled water? a. 12% b. 13% c. 24% d. 25% - Answer a. 12% Which of the following is the molarity of a solution containing 400g of HCl dissolved in 1.5 liters of distilled water? (gms of HCl = 36) a. 6.4M b. 6.3M c. 7.4M d. 7.8M - Answer c. 7.4M A 24-hour urine sample submitted to the laboratory for creatinine determination has a total volume of 1500mL. A 1:...

ppm - (grams analyte/grams sample)x10^6 Molarity - moles analyte/liter of solution Volume Percent - (volume solute/volume soution)x100 Volume ppm - (volume solute/volume solution)x10^6 kilo- - 10^3 deci- - 10^-1 centi- - 10^-2 milli- - 10^-3 micro- - 10^-6 nano- - 10^-9 pico- - 10^-12 femto- - 10^-15 weight percent - (grams analyte/grams sample)x100ppt - (grams analyte/grams sample)x10^3