Question

Marco is investigating the idea of convervation of mass.
he places some zinc in a breaker and finds the mass of the zinc. He places some dilute sulfuric acid in another beaker and find the mass of the sulfuric acid. he then mixes the zinc metal and the acid in another beaker. when reaction has finished,he find the mass of the contents of the beaker. marco starts with 100g of zinc and 150 g of sulfric acid. what is the mass of the products of this reaction? write the word equation for this reaction

Answer 1

$\red{\bigstar}\underline{\underline{\textsf{\textbf{ Given :- }}}}$

• Marco is investigating the idea of convervation of mass.
• Marco starts with 100g of zinc and 150 g of sulphuric acid.

$\red{\bigstar}\underline{\underline{\textsf{\textbf{ To Find :- }}}}$

• The mass of products of the reaction.

$\red{\bigstar}\underline{\underline{\textsf{\textbf{ Solution :- }}}}$

By the Law of Conservation of Mass , we know that , chemical reaction mass is neither created nor destroyed or in other words the mass of reactants is equal to the mass of products. Here we mixed 100g of Zinc with 150g of Sulphuric Acid . Therefore , the reaction would be ,

$\sf\dashrightarrow \boxed{\sf\purple{ \underset{\blue{\sf 100 \ g}}{Zn} + \underset{\blue{\sf 150 \ g}}{H_2SO_4} \to \underset{\blue{\sf Product }}{\underbrace{ZnSO_4 + H_2}}}}$

➤ By Law of Conservation of Mass :-

$\\\sf\dashrightarrow Mass_{(Reactants)}= Mass_{(Products)} \\\\\\\\\sf\dashrightarrow 150g + 100g = Mass_{(Products)} \\\\\\\\\sf\dashrightarrow \underset{\blue{\sf Required \ Answer}}{\underbrace{\boxed{\pink{\frak{ Mass_{(Products)}= 250\ grams }}}}}$

$\rule{200}2$