Molar mass

Molar Mass of a Volatile Liquid 2.Objective- We receive a unknown volatile liquid and try to find it's molar mass.In order to do this we must know how to convert units of measurements and the formula required. 3.Introduction- In order to do this experiment you must know certain terms and formulas. Molar mass is defined as one mole of this substance. The molar mass is what we are trying to find.One equation use d to find molar mass is MW=m/n. Another thing needed to know is the Ideal Gas Law. The

The Effect of Different Molar Mass on the Diffusion on Substances Lunar-maius A. Gaerlan Group 2 Sec. X – 9l August 15, 2012 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using agar-water gel test. The agar-water gel set up was composed of a petri dish of agar-water gel containing three wells. Drops of potassium permanganate (KMnO4), potassium dichromate (K2Cr2O7) and methylene blue(C16H18N3SCl) were simultaneously introduced to each well. Methylene blue

are many steps to prepare a quantitive solution. First you have to calculate the molar mass of solution. Then you place the solution into 1000mL of water, making a 1M solution. After you make a 1M solution you change it to the designated amount, and change the molar mass, and the molar solution. Finally you have the need molar solution all you have to change is the volume, and for that you simply divide both the the mass and volume by the same number you need to obtain the designated volume. In order

Christina Cox Your Life as a Microbe project September 1, 2016: My name is strep. Streptococcus Mutans to be exact. I live in a diverse community but my family make up about twenty percent of the world we live in. Our home is called mouth. We have lived here for as long as I can remember. From what I have been told we lived here before there were even homes for us. As a baby our host was kissed by a caregiver who transferred my family to our host. I wasn’t around yet but I hear we had to live down

The Ka and Molar Mass of a Monoprotic Weak Acid Chemistry Lab 152 Professor: James Giles November 7, 2012 Abstract: The purpose of this experiment was to determine the pKa, Ka, and molar mass of an unknown acid (#14). The pKa was found to be 3.88, the Ka was found to be 1.318 x 10 -4, and the molar mass was found to be 171.9 g/mol. Introduction Acids differ considerable as to their strength. The difference between weak and

This prospective clinical study was conducted in Department of Oral and Maxillofacial Surgery, Ragas Dental College and Hospital, Chennai, from April 2014 to October 2016. 40 healthy patients requiring surgical extraction of impacted mandibular third molars and fulfilling inclusion criteria were included in the study out of which 23 were males and 17 were females. The nature and number of the diagnostic investigations required, the clinical procedure about to be performed, the duration of the treatment

Finding Molar Mass of an Unknown Compound using Freezing Point Depression Farida Elassar*, Pranav Menon Introduction: Certain species of animals and fish survive the cold by increasing the concentration of solutes in their blood to lower its freezing point. In this experiment, we will be measuring the freezing point depression of the aqueous solutions of an unknown compound to ascertain the unknown’s molar mass and therefore its identity. Method: Firstly, the experimental apparatus was set up by

I. Abstract: By manipulating the ideal gas law (PV=nRT), we will be determining the molar mass of an unknown volatile liquid. Heating a flask filled with an unknown, easily evaporated liquid will allow for measurements that can be taken to work out the ideal gas equation. This lab will require knowledge of basic equations used in chemistry. Using these equations, such as density and number of moles(n), we can substitute different values into the ideal gas law to manipulate it.

Determination of a Precipitate Objective: * Measure the conductivity of the reaction between sulfuric acid and barium hydroxide * use conductivity values to determine equivalence point * measure mass of a product to determine equivalence point gravimetrically * calculate molar concentration of barium hydroxide solution Procedure: * First, combine 10.0 mL of the Ba(OH)2 solution with 50 mL of distilled water. Then, measure out 60 mL of 0.100 M H2SO4. Set up a conductivity probe

which 2 molecules of one substance react with 1 molecule of another for instance the formation of water: 2H2 + O2 2H2O, 2 moles of hydrogen molecules will react with 1 mole of oxygen molecules to give 2 moles of water molecules. For an element, the mass