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natima [27]
3 years ago
10

This data was collected after conducting an experiment about the amount, in liters, of water a specific plant needs per month. A

n accepted value for the measurement is 6 liters. These are the collected experimental values.
Which values in the collected data are precise? Check all that apply.

1.1 liters
1.2 liters
1.5 liters
6.0 liters
8.1 liters
Chemistry
2 answers:
Aneli [31]3 years ago
5 0

Answer:

1.1 liters

1.2 liters

1.5 liters

Explanation:hope you do good in edge

Effectus [21]3 years ago
4 0

Answer:

1.1 liters

1.2 liters

1.5 liters

Explanation:

Precision in data refers to how close the experimental values of an experiment are to one another irrespective of the true or accepted value. In other words, a set of values are said to be PRECISE if they are close to one another.

In this case, data was collected after conducting an experiment about the amount, in liters, of water a specific plant needs per month. However, according to the set of experimental values provided, only 1.1 litres, 1.2litres and 1.5litres are close to one another and, hence, are said to be PRECISE even if they are not close to the accepted value of 6litres.

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Answer:- Mass of the alloy is 2.8 kg.

Solution:- Mass of Cr in the alloy is 325 g and mass of Fe in the alloy is 2.5 kg. Mass of alloy would be the sum of masses of constituent metals.

Masses of the metals are not in the same units. So, we need to make the units equal. The want answer in kg so let's convert mass of Cr from g to kg.

Since, 1000 g = 1 kg

So, 325g\frac{1kg}{1000g}

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If we consider significant figures then as per the rules, the answer should not have more than one decimal place.

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