Hydrogen Gas Lab Essay

Submitted By Melissa-Botelho
Words: 1130
Pages: 5
Open Document
Measuring and Reporting the Molar Volume of Hydrogen Gas

Melissa Botelho
SCH3UB
Mrs.Mascherin
January 16, 20

Purpose:
To produce and collect hydrogen gas by reacting magnesium and hydrochloric acid. To use stoichiometry to calculate the molar volume of hydrogen at room temperature and pressure and compare this value to accepted values.

Materials:
Thermometer
Ring stand
Burette clamp
Gas-measuring tube (50cm3)
Funnel
Graduated cylinder (25cm3)
Beaker (400 cm3)
One hole stopper
Deep glass container(1000cm3)
Metric ruler
Copper wire (20cm)
Room temperature water
Safety goggles
2 cm magnesium ribbon
10 cm3 of 6 mol/dm3 hydrochloric acid

Procedure:
Refer to lab sheet “Measuring and Reporting the Molar Volume of Hydrogen Gas”

Observations:
Table 1: Qualitative Observations- Molar Volume of Hydrogen Gas
Reactant
Physical Properties
Chemical Properties
HCl
Strong smell
No characteristic feeling
Clear liquid with a yellow tint due to high concentration
A reaction between hydrochloric acid and magnesium resulted in a single displacement reaction, the products being magnesium chloride ( MgCl2) and hydrogen gas (H2). As hydrochloric acid and magnesium react, bubbles of gas are formed. Once the reaction is complete the gas rises to the top of the gas measuring tube and displaces the water in the tube.
Magnesium
Silver
Malleable
Conducts electricity
Ductile

Data Processing:
Table 2: Data collection- Molar Volume of Hydrogen Gas
Room Temperature
294K
Room Pressure
102.7 kPa
Mass of 2 cm of Magnesium Ribbon

= = 2.86 g/cm 0.0735 g/cm x= x=0.0286gg

Volume of H2 gas
27.8 cm3 cm3
Volume of 6 M HCl
10.00.05 cm3

1. Write the balanced chemical equation for the reaction and place all given information below the appropriate species:
Mg(s) + 2HCl(aq)  MgCl2(aq) + H2 m =0.0286gg v= 0.01dm3 5x10-5 dm3 V=0.0328L 5x10-5L
T=294K T=294K
P=102.7kPa P=102.7kPa

2. Determine the number of moles of magnesium used in the reaction

n= = =1.176954733 x 10-3 mol 3. 083539096 x 10 -5 mol

3. Determine the number of moles of hydrogen gas produced
We are told that HCl is in excess, therefore Mg is the limiting reactant
MR : 1.176954733 x 10-3 mol 3.083539096 x 10 -5 mol of H2 is produced

4. Determine the Molar Volume of Hydrogen gas
Vm = = =23.62027971 dm3/mol 0.6613173282 dm3/ mol
The molar volume of Hydrogen gas is 23dm3/mol 0.6613173282 dm3/ mol

Conclusion: In this experiment, 10cm3 of 6 mol/dm3 hydrochloric acid solution was placed into a gas measuring tube, and then the tube was filled with water. Two centimeters of magnesium ribbon was suspended in the gas measuring tube by a piece of copper wire. A stopper with a hole was placed on top of the gas measuring tube and the tube was placed upside down in a beaker of water. The magnesium reacted with excess hydrochloric acid to from hydrogen gas and magnesium chloride. The reaction was observed until bubbles no longer form, once the reaction ended, the gas measuring tube was removed from the beaker and placed into a beaker with room temperature water. The pressure in the gas measuring tube was thus adjusted to room pressure. It was observed that the volume of hydrogen gas produced in the reaction was 27.8 cm3 cm3. Using stoichiometry and gas laws, the molar volume of hydrogen gas produced could be determined. Dividing the mass of magnesium used by its molar mass, it was deduced that 1.176954733 x 10-3 mol 3. 083539096 x 10 -5 mol of magnesium was used in the reaction. Using the balanced equation of the reaction a mol ratio between magnesium and hydrogen gas proved that 1.176954733
Show More

Related Documents: Hydrogen Gas Lab Essay

Essay about Determining Molar Volume of a Gas

Volume of Gas Using Magnesium and Hydrochloric Acid and Demonstrating Boyles Law Taylor Payne Abstract: In this experiment we combined a strip of magnesium with hydrochloric acid in a buret and measured the amount of hydrogen gas the reaction produced. We also tracked the pressure inside a syringe as the volume of the syringe increased and decreased. Introduction: The moles and density of the hydrogen gas that is produced in this experiment can be calculated using the combined gas law equation…

Words 595 - Pages 3

Enthalpy Lab Report Essay

Abstract This lab is performed in order to determine the total energy in a reaction between zinc and hydrochloric acid. The reaction is done twice, once to measure the heat of the reaction and again to determine the work done in the system. This is because Enthalpy equals heat plus work (∆H= ∆E+W). Heat and work can be broken down further into separate components so the equation used in lab is ∆H=mc∆T + PV. Many calculations are used in the lab to find out what cannot be measured directly (ex:…

Words 1240 - Pages 5

Summary Of Lab: Synthesis Of Zinc Chloride

Lab: Synthesis of Zinc Chloride Name:Aiden Glover (a modified student lab activity derived from the Introductory Physical Science Text (5th ed.) Purpose: This lab activity will have three objectives. First, we will determine the ratio of zinc to zinc chloride formed when zinc is made to react chemically with HCl. Second, we will measure the temperature of the water to determine the amount of heat absorbed or released during the course of this chemical reaction. Last, we will attempt to capture…

Words 1528 - Pages 7

Sandra Chimon Rogers 'Conservation Of Matter'

Conservation of Matter Lance Martin Partners: Nick Brogan, Josh Mayer, Patrick Vanhassenhoven, Piper Blackford CHM2045L Purpose: The purpose of this lab was to demonstrate the law of conservation of mass that mass is neither created nor destroyed. This is clearly shown through chemical reactions which is the purpose of this lab. Before the experiment and after the experiment the mass of the reactants and the reagents should be the same due to this law. Procedure: The procedure that was…

Words 345 - Pages 2

Properties of Acids and Bases Lab Essays

2014 Properties of Acids and Bases Objectives: ● To investigate the properties of acids and bases ● To learn the names and formulas of common laboratory acids and bases Procedure: The procedure followed in this lab is as outlined on the first page of the provided lab handout, “Properties of Acids and Bases.” Data: Table I: Properties of Common Laboratory Acids Name Hydrochloric Formula Effect on Blue Litmus HCl Acid Turned pink Effect on Red Litmus Reaction with…

Words 1933 - Pages 8

Methamphetamine Synthesis Case Study

what would you expect to be in the liquid portion? What might be the circumstances where you would find this type of exhibit? What would be the next steps in methamphetamine production, what other exhibits might you see if this were part of a clan lab? The illicit methamphetamine production by the Hydriodic Acid and Red Phosphorus Reduction method use ephedrine and pseudoephedrine obtained by the extraction from cold medications. The tablets are crushed and the pseudoephedrine or ephedrine is extracted…

Words 830 - Pages 4

Avogadro's Law Lab Report

In this experiment, the molar volume of Hydrogen gas was measured by proving Avogadro’s Law. Avogadro’s law or principle was explained as: “Equal volumes of gases at the same temperature and pressure contain equal number of particles.” (Dingrando, Tallman, Hainen, Wistrom, Chemistry: Matter and Change) Avogadro’s Law is related to the molar volume, which is the volume of one mole at standard temperature and pressure. Standard temperature and pressure (STP) were established as 0.00oC or 273K…

Words 681 - Pages 3

Oxidation Reaction: Adipic Acid From Cyclohexanone

of hydrogen. First, we shall learn to identify structures that can undergo oxidation. Then, we shall learn the reagents that can oxidize the structures. Oxidation reactions require an “activated” carbon atom such as that shown in Figure 1 where the carbon is bonded to an oxygen atom and to at least one hydrogen atom. The carbon atom shown in the red square is bonded to oxygen and to a hydrogen atom. The hydrogen atoms are shown in blue. Oxidation involves the removal of the two blue hydrogen atoms…

Words 1398 - Pages 6

Oxygen and Adiabatic Flame Temperature Essay example

Oxyhydrogen Gas Kory Illenye Mrs. Lindsay General Chemistry II 11 March 2015 Oxyhydrogen Gas Oxyhydrogen is a gas mixture created by the electrolysis of water. It is easy to produce and has an efficiency of about 83%. There are many uses for this mixture, one is as a fuel for combustion engines. Oxyhydrogen is a clean fuel that was originally called brown’s gas. Stanley Meyer said that cars could be run on water; he called his technology a fuel cell. Oxyhydrogen was…

Words 901 - Pages 4

Essay about Enzyme Lab

Enzyme Lab By: Gaurav Sahota March 19, 2014 Ms. Lukas Background Information: This lab discusses the enzyme, Catalase, and the factors that affect its performance. An enzyme is a biological catalyst that speeds up reactions. Catalase catalyzes the decomposition of hydrogen peroxide to water and oxygen. Catalase has an optimal pH level of 7.0. The concentration of both the enzyme and the substrate will influence the rate of a catalysis reaction. If there is excess substrate present, then the…

Words 1147 - Pages 5