CHEM 1020 DYouville Combustion of Magnesium Metal to form Magnesium Oxide Worksheet

User Generated

aowna

Science

CHEM 1020

DYouville College

CHEM

Description

please answer the question on the file make it simple and short. dont use any source just watch the video on the file

Unformatted Attachment Preview

Chemistry 1020 March 2020 Laboratory Exercise for week of March 30th Title: Combustion of Magnesium Metal to form Magnesium Oxide Background: Magnesium is a light transition metal (in the Alkaline Earth family on the periodic table) and fairly common in the earth’s crust but never found in pure form due to its high reactivity. Magnesium is found in more than 60 minerals including dolomite, magesite, brucite, carnallite, talc and olivine. Its melting point is 1202 degrees F , while its temperature burning is 5610 degrees F (3100 degrees C). Videos to watch: The first video to watch on YouTube is for you to simply observe and take notes on the Intensity/color of the flame as well as to appreciate how care must be taken never to come in contact with burning Mg due to its extremely high temperature. Also note the exothermic nature of this reaction. Magnesium Reacts with Oxygen (4:55) ScienceFix.com 2nd Video: Magnesium Oxide (2:57) cr harrison This is the quantitative part of the lab exercise. Take notes: Cup plus lid 31.063 g (mass 1) Cup/lid + Mg ribbon 31.634 (mass 2) Subtract mass 1 from mass 2 = __________ g of Mg After heating with Bunsen burner 31.970 g (mass 3) Subtract mass 2 from mass 3 = __________ g of oxygen Subtract mass 1 from mass 3 = ____________ g MgO Mole calculations: _____________ g Mg 24.3 g/mole = ______________ moles Mg _____________ g oxygen = ___________ moles of oxygen 16 g/mole ____________ g MgO = 40.3 g/mole Mole ratios: ____________ moles of MgO moles of Mg/ moles of oxygen = moles of Mg / moles of MgO ____________________ = ____________________ mole of oxygen / moles of MgO = ____________________ From the 2nd video it should be clear that the formula for Magnesium Oxide Should be Mg O ( ionic bonding part of video & Octet Rule) Reaction equation: 2 Mg + O2  2MgO + heat + light Discussion & Conclusions: Define combustion reaction, synthesis reaction, combination reaction. Does the burning of Mg fit any one of these reaction types? Would all three of these reaction types describe the burning of Mg? Do the mole ratios calculated in this exercise make sense as they relate to the balanced reaction equation above? Explain. There is no stated purpose for this lab exercise at the beginning of this narrative. Think about what you believe the purpose should be and include that in your report. In the Conclusion section state whether you accomplished the purpose.
Purchase answer to see full attachment
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Explanation & Answer

Here you go!

Chemistry 1020
March 2020
Laboratory Exercise for week of March 30th
Title: Combustion of Magnesium Metal to form Magnesium Oxide
Background:
Magnesium is a light transition metal (in the Alkaline Earth family on the periodic table) and fairly
common in the earth’s crust but never found in pure form due to its high reactivity. Magnesium is
found in more than 60 minerals including dolomite, magesite, brucite, carnallite, talc and olivine.
Its melting point is 1202 degrees F , while its temperature burning is 5610 degrees F (3100 degrees
C).
Videos to watch:
The first video to watch on YouTube is for you to simply observe and take notes on the
Intensity/color of the flame as well as to appreciate how care must be taken never to come in
contact with burning Mg due to i...


Anonymous
Just what I was looking for! Super helpful.

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4

Related Tags