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Oliga [24]
3 years ago
10

Where in a data table should units of measurement be shown?

Chemistry
2 answers:
Vikentia [17]3 years ago
6 0
The unites of measurement in a data table should be shown in the headings of some columns.
exis [7]3 years ago
6 0

Answer:

The units of measurement in a data table should be shown at the top of each column (headings containing the name of the variable and the unit should be in parentheses)

Explanation:

The units of measurement must be in the headings of each column, considering that all values of each column correspond to that unit. It should be in the same units system, whether it's international or English system.

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A compound is 53. 31% c, 11. 18% h, and 35. 51% o by mass. What is its empirical formula? insert subscripts as needed.
lyudmila [28]

Answer:

C2H5O

Explanation:

In a 100 g sample we would have

53.31 g of C

11.18g of H

35.51g of O

First, we find the relative number of atoms of each element by dividing the number of grams the element has in the compound by its atomic mass.

Atomic mass of carbon is 12.011

Relative number of carbon atoms = 53.31 / 12.011 = 4.4

Atomic mass of hydrogen = 1.007

Relative number of hydrogen atoms : 11.18/1.007 = 11.1

Atomic mass of oxygen : 15.999

Relative number of oxygen atoms : 35.51 / 15.999 = 2.2


Now we find a ratio of the relative number of atoms by dividing the # of relative atoms of each element by the element's relative number of atoms that had the lowest number. ( oxygen which had 2.2 ) The outcome of each will be the subscript or number of atoms of each element.

Carbon : 4.4 / 2.2 = 2

Hydrogen : 11.1 / 2.2 = 5

Oxygen : 2.2 / 2.2 = 1

The answer is C2H5O

8 0
2 years ago
Alteration of the physical form of a drug outside its label is
antiseptic1488 [7]
Alteration of the physical form of a drug outside its label is compounding
It is called compounding according to some sources.
4 0
3 years ago
Write the electron dot structures for the following elements:
Evgesh-ka [11]

Answer:

Drawings of Lewis structure Are attached for your elements

Explanation:

Please open the attachment

7 0
3 years ago
Hi GUYS PLEASE HELP ME YOU KNOW I HELP YOU WHEN YOU NEED IT MOST SO HERE IT GOES WHICH SEQUENCE REPRESENTS THE ORDER OF DEVELOPM
exis [7]
To answer your question, the answer is number 1. hope this help
6 0
3 years ago
A 6.0 Liter solution is made with 2 moles of solute. What is the molarity of the solution?
kodGreya [7K]
The formula for molarity is: mol/L. so it would be 2.0 mol/ 6.0 L.

the answer is: .33 M

hope this helps!
3 0
3 years ago
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