Human blood typically contains 1.04 kg/L of platelets. A 1.89 pints of blood would contain what mass (in grams) of platelets

A 1.89 pints of blood would contain 873 grams of platelets.

To calculate the amount of platelets present in 1.89 pints, it is first necessary to transform this unit of volume into liters:

Now, just calculate the amount of platelets present in 0.84L:

                                       x = 873 grams

So, a 1.89 pints of blood would contain 873 grams of platelets.

Learn more about transformation of units in: link