## steve816 one year ago The density of a substance is 570 mg/mL. What is its density in kg/L?

1. ganeshie8

Hint : $$1 mg = 10^{-3}g$$ $$1mL = 10^{-3}L$$

2. jim_thompson5910

it might be easier to use 1000 mg = 1 g 1000 mL = 1 L that's just my opinion though

3. steve816

Hmmm, I got .000570 kg/L Is that correct?

4. jim_thompson5910

This is one way to set up $\Large \frac{570 \text{ mg}}{1 \text{ mL}} \times \frac{1000 \text{ mL}}{1 \text{ L}} \times \frac{1 \text{ g}}{1000 \text{ mg}}$

5. jim_thompson5910

oh wait, you want kg not g, let me fix

6. jim_thompson5910

1000 mg = 1 g 1000 mL = 1 L 1000 g = 1 kg $\Large \frac{570 \text{ mg}}{1 \text{ mL}} \times \frac{1000 \text{ mL}}{1 \text{ L}} \times \frac{1 \text{ g}}{1000 \text{ mg}} \times \frac{1 \text{ kg}}{1000 \text{ g}}$

7. jim_thompson5910

0.000570 kg/L is not correct

8. steve816

I think I figured this out! Thank you jim, very helpful :)

9. jim_thompson5910