What is the mass, in kilograms, of formula units of barium chloride?

≈ 8.51E-5 kg

Explanation:

First take the mass of BaCl2, and multiply by the ratio between 1 mol of formula units which is around 6.02 × 10^23, and the formula units given, which are 2.46 × 10^20.

This ratio as a decimal is around

2.46 × 10^20. ÷ 6.02 × 10^23 = 0.000408637873.

The final step is to multiply this ratio by the mass in grams, and divide by 1000 to convert to kilograms.

So

0.000085091890208409

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.