How many significant figures are in 136,000 ml?

There are 3 sig figs

Explanation:

Sig figs are the amount of figures counting from the left side of the number until you reach the first zero. Starting from the left, I counted one, three, and six. That's 3 numbers, and therefore, that's how we got our answer. The only exception is when there is a decimal. Then all the numbers before the decimal, despite whether or not they're zeros, are sig figs.

3 significant figures

Explanation:

The significant figure is such that every number after it is zero. As such, when a number is given to be rounded to a x significant numbers, the count starts from the left with the first number on the left being the first significant number and others following through i. e the next being the second significant number.

However, to round off to x significant number, we consider the number in the x+1 position. If the number is up to 5, it will be rounded (as well as every other numbers to the right) to zero but 1 will be added to the number in the x position.

Given the theory, 136,000 ml has 3 significant figures.