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Formal Report about Mole
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Transcript of Formal Report about Mole
7/27/2019 Formal Report about Mole
http://slidepdf.com/reader/full/formal-report-about-mole 1/2
June 6, 2014
FORMAL REPORT
Group 8 SignatureLeah Rose Paras __________________
Krizza Mae Martin __________________Issabette Pajarillaga __________________Ryan Carlo Magpantay __________________
Carl Andrew Pimentel __________________
The Investigation of the Relationship among Number of Moles, Mass and Number of
Particles
I. Purpose- To describe the relationships among the number of moles, mass and number of
particles.
II. Procedure
Measure the weight of each of thesubstances.
Measure 1 tbsp. of each of thesubstances: sulfur, aluminumfoil, salt and sugar.
Compute the number of moles ofeach of the substances usingmolar mass.
Compute the number of particles of
each substances using calculator.
7/27/2019 Formal Report about Mole
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III. Data
Substances Sulfur Aluminum Foil Sugar Salt
Mass (g) 10g 5g 15g 15g
No. of Moles 0.31 mol 0.19 mol 0.04 mol 0.26 mol
No. of Particles 1.87x10 1.14x10 2.65x10
1.57x10
IV. Calculation15g C12H22O11 x 1g = 0.044 mol x 6.02 x 10
23 = 2.65x10
22
342.34g/mol
10g S x 1g = 0.31 mol x 6.02 x 1023
= 1.87x1023
32.07 g/mol15g NaCl x 1g = 0.26 mol x 6.02 x 10
23 = 1.57x10
23
58.39 g/mol
5g Al x 1g = 0.19 mol x 6.02 x 1023
= 1.14x1023
26.98g/mol
V. Conclusions We conclude that the number of moles is directly related to the number of particles in each substances. And
as the mass increases, the number of moles also increases. This is because the mass is divided by the
formula mass to get the number of mole in a substance.
VI. Discussion of Theory The experiment showed that there is a direct relationship between the number of particles and moles
because as one variable increase, the other increases likewise. On the other hand, the mass of the sample is
related to the number of moles in terms of the computation of mass divided by the formula mass. Our
collected data showed these analyses within reasonable margins of error. The purpose of the lab was
fulfilled when we were able to use the mathematical model for this linear relationship to predict the number
of moles, particles and mass.
VII. Questions 1.) List down the substances based on the following order.
a.) Increasing order (light to heaviest)
Aluminum foil ---- Sulfur ---- Sugar = Salt
b.) Increasing number of particles (lowest to highest amount)Sugar ---- Aluminum foil ---- Salt ---- Sulfur
c.) Increasing number of moles (lowest to highest amount)
Sugar ---- Aluminum foil ---- Salt ---- Sulfur
2.) Is the number of particles in the sample directly related to the number of moles?
The number of particles in the sample is directly related to the number of moles because as the numberof particles increases, the number of moles increases likewise.
3.) Is the mass of the sample related to the number of moles? Explain your answer.Yes. The mass of the sample is related to the number of moles in terms of the computation of mass
divided by the formula mass.
4.) Explain why one tablespoon of different substances does not have the same mass in grams(g), the same
number of moles and the number of particles:The different substances varies in mass, mole and particles because they have different components and
compositions which contribute to the different measurements.