<u>Question 1</u>
The formula mass of methanol is g/mol.
Therefore, in 5.0 grams of methanol, there are moles.
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<u>Question 2</u>
The formula mass of copper(II) carbonate is g/mol.
This means that in 9.0 grams of copper(II) carbonate, there are moles.
Using Avogradro's number, there are molecules.
<u>Question 3</u>
The formula mass of cyclohexane is g/mol.
So, 3.0 grams of cyclohexane is the same as moles.
<u>Question 4</u>
The formula mass of benzene is g/mol.
This means that 4.00 moles of benzene has a mass of grams.
<u>Question 5</u>
1000 atoms of calcium is the same as moles.
This is equal to grams.
Answer:
1) The correct step in the scientific method that Victor did is Construct a hypothesis.
2) Given mass and density, volume is calculated as mass divided by density.
Explanation:
1) Before doing the assay and make a graph with the results obtained, Victor should think what he wants to prove, so he should make a hypoythesis to test with the assay.
2) The formula of density is
density = mass/volume ⇒ density x volume = mass ⇒ volume = mass/density.
Answer: The 3rd and 6th bullet point is the quantitative data.
Explanation: Quantitative data is expressed by NUMBERS and Qualitative data is expressed by WORDS. The 3rd and 6th one is correct because they both use numbers to compare how much time hummingbirds spent feeding on nectar.
Answer:
Gas
Explanation:
This is kind of like the process of evaporating