How many grams are presented in a 7.4 moles sample of H2O?

130g

Explanation:

For every mole of a substance, there is a molar mass that coincides with the masses on the periodic table. For one mole of H2O, you would add the molar masses of the two hydrogen atoms and the oxygen atom to get 18.016g. You would then take this molar mass and multiple it by the amount of moles present (7.4) to get 133.3184g

From here, you would round to the significant figures to get 130g

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.