Answer:
this is hard for me to explain but i thinkg its august 12
Explanation:
The number of mole of ethanol, CH₃CH₂OH the chemist will use in the experiment is 0.65 mole
<h3>Description of mole </h3>
The mole of a substance is related to it's mass and molar mass according to the following equation:
Mole = mass / molar mass
<h3>How to determine the mole of CH₃CH₂OH</h3>
From the question given above, the following data were obtained:
- Mass of CH₃CH₂OH = 30 g
- Molar mass of CH₃CH₂OH = 12 + (1×3) + 12 + (1×2) + 16 + 1 = 46 g/mol
Mole = mass / molar mass
Mole of CH₃CH₂OH = 30 / 46
Mole of CH₃CH₂OH = 0.65 mole
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Answer:
A conceptual framework is an analytical tool with several variations and contexts. It can be applied in different categories of work where an overall picture is needed. It is used to make conceptual distinctions and organize ideas.
3.5% of the sample means fall above 1.06 cm.
<h3>Z score</h3>
z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:
From the normal distribution table:
P(z > z*) = 3.5%
1 - P(z < z*) = 3.5%
P(z < z*) = 96.5%
z* = 1.81
Using the z score formula:
3.5% of the sample means fall above 1.06 cm.
Find out more on z score at: brainly.com/question/25638875
Answer:
the answers are
(2)Both involve the formation of solid particles from nebular materials
And
(4)Both involve the trapping of gases and the clumping of masses of matter
Explanation:
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