Login

Question about Ponderal Laws: Introduction

Chemistry

Originais Teachy

Ponderal Laws: Introduction

Medium

(Originais Teachy 2023) - Question Medium of Chemistry

Imagine that you have been tasked with investigating a new compound formed by the reaction between magnesium (Mg) and chlorine (Cl2) and determining if the compound obeys the Law of Proust (Law of definite proportions). It is known that two different experiments were conducted: in the first one, 12 grams of magnesium were combined with 35.5 grams of chlorine, resulting in the compound MgCl2; in the second experiment, 24 grams of magnesium were combined with 53.25 grams of chlorine. The total mass of the compound in the second experiment is 77.25 grams. Do the following: (1) Calculate the molar ratio between magnesium and chlorine in the first experiment; (2) Calculate the molar ratio between magnesium and chlorine in the second experiment and compare it with the first one; (3) Discuss whether the compound formed in the two experiments obeys the Law of Proust, justifying your answer based on the calculations.

Answer:

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur id consequat justo. Cras pellentesque urna ante, eget gravida quam pretium ut. Praesent aliquam nibh faucibus ligula placerat, eget pulvinar velit gravida. Nam sollicitudin pretium elit a feugiat. Vestibulum pharetra, sem quis tempor volutpat, magna diam tincidunt enim, in ullamcorper tellus nibh vitae turpis. In egestas convallis ultrices.
Emoji eyes

Answer

You must have a teacher account to see the answer

Emoji eyes
Iara Tip

IARA TIP

Are you preparing an exam or test?

With Teachy, it's possible to generate these materials automatically, without spending hours searching for questions ūüėČ

Those who search for this subject, also viewed these questions...
Question icon

Question

Difficulty Easy

Source:

Is external icon

Teachy

Antoine Lavoisier formulated the Law of Lavoisier, stating that the total amount of mass before and after the chemical reaction is constant, that is, there are no variations in the amount of matter present in the system after a chemical reaction. This law is directly related to which principle of Chemistry?

Ponderal Laws: Introduction

Question icon

Question

Difficulty Medium

Source:

Is external icon

Teachy

A chemist in his research carried out chemical reactions between element X and element Y, resulting in two different compounds, XY and XY2. When analyzing the masses involved, he observed that for every 10g of element X, 20g of element Y were required to form the compound XY and 40g of element Y were required to form the compound XY2. Based on Dalton's Law of Multiple Proportions, is the chemist correct in his observations? Justify your answer.

Ponderal Laws: Introduction

Question icon

Question

Difficulty Medium

Source:

Is external icon

UNESP

Solutions and Mixtures

Question icon

Question

Difficulty Easy

Source:

Is external icon

Teachy

A chemistry lab is preparing a salt solution for an experiment. They decide to use sodium chloride (NaCl), which is formed from the reaction between sodium hydroxide (NaOH), a base, and hydrochloric acid (HCl), an acid. Given that the molar mass of NaOH is 40g/mol, HCl is 36.5g/mol and NaCl is 58.5g/mol, if the lab starts with 80g of NaOH and an excess of HCl, calculate the mass of NaCl salt that will be produced in the reaction.

Inorganic Functions: Salts

Teachy logo

We reinvent the lives of teachers with artificial intelligence

Instagram LogoLinkedIn LogoTwitter LogoYoutube Logo
BR flagUS flagES flagMX flagPE flagAR flagCO flag
CL flagIN flagID flagPH flagVN flagNG flagFR flag

2023 - All rights reserved