How many grams does 73 ml of pure water weigh

Answer;

- 73 grams

Explanation;

1 milliliter (ml) of water weighs 1 gram (g).

1 L of water is equal to 1000 g

but; 1000 mL makes 1 L

Thus; 1000 mL = 1000 g

Therefore; 1 mL = 1 g

Hence; 73 ml of water is equivalent to 73 g

imma come back to you hold on

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.