Convert Rontogram to Nanogram
Unit definitions
Rontogram
$\frac{1}{10^{27}}$ of a gram is a rontogram.
Nanogram
$\frac{1}{10^{9}}$ of a gram is a nanogram.
How to convert Rontogram to Nanogram
$$\text{Mass}_{\text{ng}} = \frac{\text{Mass}_{\text{rg}}}{1000000000000000000}$$
Examples
Example 1
Convert $35.0\ \text{rg}$ to $\text{ng}$.
$$\text{Mass}_{\text{ng}} = \frac{35.0}{1000000000000000000}$$
$$\text{Mass}_{\text{ng}} = 0.000000000000000035$$
$$\therefore \ 35.0\ \text{rg} = 0.000000000000000035 \ \text{ng}$$
Example 2
Convert $90.0\ \text{rg}$ to $\text{ng}$.
$$\text{Mass}_{\text{ng}} = \frac{90.0}{1000000000000000000}$$
$$\text{Mass}_{\text{ng}} = 0.00000000000000009$$
$$\therefore \ 90.0\ \text{rg} = 0.00000000000000009 \ \text{ng}$$
Example 3
Convert $105.0\ \text{rg}$ to $\text{ng}$.
$$\text{Mass}_{\text{ng}} = \frac{105.0}{1000000000000000000}$$
$$\text{Mass}_{\text{ng}} = 0.000000000000000105$$
$$\therefore \ 105.0\ \text{rg} = 0.000000000000000105 \ \text{ng}$$
Example 4
Convert $150.0\ \text{rg}$ to $\text{ng}$.
$$\text{Mass}_{\text{ng}} = \frac{150.0}{1000000000000000000}$$
$$\text{Mass}_{\text{ng}} = 0.00000000000000015$$
$$\therefore \ 150.0\ \text{rg} = 0.00000000000000015 \ \text{ng}$$
Example 5
Convert $175.0\ \text{rg}$ to $\text{ng}$.
$$\text{Mass}_{\text{ng}} = \frac{175.0}{1000000000000000000}$$
$$\text{Mass}_{\text{ng}} = 0.000000000000000175$$
$$\therefore \ 175.0\ \text{rg} = 0.000000000000000175 \ \text{ng}$$