What is the mass of 5.28×10^21 platinum atoms

1, 71 g

Explanation:

The atomic mass of platinum is 195,1 g/mol, and it has the equivalent of the avogadro's number atoms (6,022x10^23 atoms).

Doing a three rule:

195,1 g ------------ 6,022x10^23 atoms

  x    g ------------ 5,28x10^21 atoms

Doing the maths:

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

pie chart because it is in percents ( % )