Recent content by SparkErosion

One more question...how come there are 3 significant figures in .005 but in .00041 there's only 2? That seems to defy logic to me...both numbers are similar..the 5 is significant, zeros are too in the first number.makes sense.but in the second number for some reason the zeros after the decimal...

Thank you! This helps a lot. Thinking more about the number 1.5... 5 is a non zero, so its significant, even if it's the uncertain number. But, it also has an infinite number of significant values. 1.5 could be 1.50... to infinity. So in that case, 5 wouldn't be the significant number, it would...

I was reading in my chemistry book about significant numbers. Also about measured and exact numbers. From what I understand, a measured quantity can be different than an exact number. The book said when comparing something, like 1 lb = 16 oz, it is an exact number because the two are the same...