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slamgirl [31]
4 years ago
10

Which is the best method for organizing information collected in an investigation? Plz help

Chemistry
2 answers:
Elden [556K]4 years ago
7 0
Construct a table i think
Digiron [165]4 years ago
6 0
All of the above because if you make each one, it helps you measure the amount, and things that you need
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matter cannot be created nor destroyed

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Ionic bonding is the complete transfer of valence electron(s) between atoms.

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You need to use the equation PV = nRT

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7 0
2 years ago
Calculate the mass of 45.0 L of Cl₂ at
amid [387]

The mass of 45.0 L of Cl₂ at 87.0° C and 950 mm Hg is 134.7214 g.

Volume = 45.0 L

Temperature =  = (87.0 + 273) K = 360 K

Pressure = 950 mm Hg (1 mm Hg = 0.00131579 atm) = 1.25 atm

The formula used to calculate moles is as follows.

∴PV = nRT

where,

P = pressure

V = volume

n = no. of moles

R = gas constant = 0.0821 L atm/mol K

T = temperature

Substitute the values into the above formula as follows:

 ∴ PV = nRT

=> 1.25 atm × 45.0 L = n × 0.0821 L atm/mol K × 360K

=> n = 1.25 atm × 45.0 L / n × 0.0821 L atm/mol K × 360K

=> n = 56.25 / 29.556 mol

=> n = 1.90 mol

Moles is the mass of a substance divided by its molar mass. So, the mass of Cl₂ (molar mass = 70.906 g/mol) is calculated as follows:

∴  Moles = mass / molar mass

=> 1.90 mol = mass /  70.906 g/mol

=> mass = 134.7214 g

Thus, we can conclude that the mass of 45.0 L of Cl₂ at 87.0° C and 950 mm Hg is 134.7214 g.

To know more about the Ideal Gas Law :

brainly.com/question/28976906

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