To convert from picograms (pg) to centimeters (cm), you need to know the density of the substance you are working with. The formula for this conversion is:
1 pg = (density in g/cm^3) * (1e-12) cm
Here’s a step-by-step guide on how to convert pg to cm:
1. Determine the density of the substance in grams per cubic centimeter (g/cm^3).
2. Multiply the density by 1e-12 (which is equivalent to 1 picogram in grams).
3. The result will give you the equivalent value in centimeters.
For example, let’s say you have a substance with a density of 2 g/cm^3 and you want to convert 5 pg to centimeters:
1 pg = 2 g/cm^3 * 1e-12 cm
1 pg = 2e-12 cm
5 pg = 5 * 2e-12 cm
5 pg = 1e-11 cm
Therefore, 5 picograms is equal to 1e-11 centimeters.
FAQs:
1. Can I convert picograms to centimeters without knowing the density?
– No, you need to know the density of the substance in order to convert picograms to centimeters.
2. Why do we need to use the density in the conversion formula?
– The density is necessary because it tells us how much mass is contained in a given volume, which is crucial for converting between mass (picograms) and volume (centimeters).
3. Is there a simpler way to convert picograms to centimeters?
– The formula provided is the most accurate way to convert picograms to centimeters, as it takes into account the density of the substance.