Chemistry, 02.10.2019 21:20 anikalee

How many significant figures are in the number 230.0? 04 nw

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Answer from: samtuck33

Answer : The number of significant figures present in given number 230.0 are, 4

Explanation :

Significant figures : The figures in a number which express the value -the magnitude of a quantity to a specific degree of accuracy is known as significant digits.

Rules for significant figures:

Digits from 1 to 9 are always significant and have infinite number of significant figures.All non-zero numbers are always significant. For example: 654, 6.54 and 65.4 all have three significant figures.All zero’s between integers are always significant. For example: 5005, 5.005 and 50.05 all have four significant figures.All zero’s preceding the first integers are never significant. For example: 0.0078 has two significant figures.All zero’s after the decimal point are always significant. For example: 4.500, 45.00 and 450.0 all have four significant figures.All zeroes used solely for spacing the decimal point are not significant. For example : 8000 has one significant figure.

As we are given the number 230.0.

According to the rule, all zero’s after the decimal point are always significant. So, the number of significant figures present in given number 230.0 are, 4.

Hence, the number of significant figures present in given number 230.0 are, 4

Answer from: devinb18

4 significant figures.

Explanation:

Hello,

Based on the general rules when assigning significant figures, we apply the following ones:

- Every non-zero digit is significant.

- Every left-sided zero is significant even when after a decimal point.

In such a way, since 230.0 has two non-zero digits and two left-sided zeros, it has four (4) significant figures.

Best regards.

Answer from: Quest

i think it is true since you can test the answer and can use observations to complete it.

Answer from: Quest

it's all four options.

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