In an investigation with density, Marcia’s teacher measures the mass and volume of 10 different samples of a substance. The samp
les are numbered 1 through 10. Then, the teacher makes the graph that is shown below. What is the independent variable in this investigation? mass volume sample number substance density
2 answers:
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Answer:
Explanation:
Oleic acid originates from an unsaturated fatty acid with 18 carbon atoms and one double bond, which can be found in olive oil and many other vegetable and animal oils and fats. Its economic importance includes the production of soap making and cosmetics etc.
The line-bond structure of the given oleic acid in the question can be found in the attached below.
Answer:
a) The lewis dot structure is shown in the image attached to this answer
b) The formal charge on each of the atoms is zero
c) bromine has an oxidation state of +5 while fluorine has an oxidation state of -1
d) 90 degrees
e) Square Pyramidal
f) polar bonds
g) polar molecule
Explanation:
The molecule BrF5 has a formal charge of zero. It exhibits an sp3d2 hybridization state with a square pyramidal geometry. The bond angle in the molecule is 90 degrees. It is a molecule of the type AX5E. The oxidation state of bromine is +5 while that of fluorine is -1.
The Br-F bonds are polar. The overall molecule is polar due to asymmetric charge distribution concentrating on the central atom since the molecule is square pyramidal.
The time taken for the same volume of methane gas to diffuse is 7.1 s.
<h3>Rate of gas diffusion</h3>The rate at which a given mass of diffuses is inversely proportional to the molar mass of the gas.
where;
- M1 is the molar mass of methane (CH4) = 16 g
- M2 is the molar mass of hydrogen as = 2
- t1 is time taken for methane = 20 s
- t2 is the time taken for hydrogen = ?
Thus, the time taken for the same volume of methane gas to diffuse is 7.1 s.
Learn more about rate of gas diffusion here: brainly.com/question/26696466