How does a best fit line take into account errors in reading and recording data from the experiment?

Chemistry

2 answers:

Dafna11 [192]3 years ago

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Remember every time you take a measurement, the last digit recorded represents a guess.

marin [14]3 years ago

7 0

Answer:

Answer below!

Explanation: Mean -- add all of the values and divide by the total number of data points.

Error -- subtract the theoretical value (usually the number the professor has as the target value) from your experimental data point.

Percent error -- take the absolute value of the error divided by the theoretical value, then multiply by 100

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A chemical change occurs when

trasher [3.6K]

Answer:

Chemical changes occur when bonds are broken and/or formed between molecules or atoms. This means that one substance with a certain set of properties (such as melting point, color, taste, etc) is turned into a different substance with different properties

Explanation:

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3 years ago

Write an equation to show how perchloric acid, HClO4, reacts with water. Include states of matter in your answer. Click in the a

BARSIC [14]

Answer:

HClO4(aq) + H2O(l) ⇄ H3O+(aq) + ClO4-(aq)

Explanation:

When an acid dissolves in water, it will produce hydronium ion, H3O+ as the only positive ion.

perchloric acid, HClO4, being an acid will react with water, H2O to produce hydronium ion, H3O+ as shown below:

HClO4(aq) + H2O(l) ⇄ H3O+(aq) + ClO4-(aq)

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