Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

Mole and Mass Relationship in a Chemical Reaction: A Chemistry Experiment, Assignments of Chemistry

Mole and Mass Relationship in a Chemical Reaction

Typology: Assignments

2023/2024

Uploaded on 07/13/2024

hala-said
hala-said 🇺🇸

2 documents

1 / 3

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Mole and Mass Relationship in a Chemical Reaction
General Chemistry I
pf3

Partial preview of the text

Download Mole and Mass Relationship in a Chemical Reaction: A Chemistry Experiment and more Assignments Chemistry in PDF only on Docsity!

Mole and Mass Relationship in a Chemical Reaction

General Chemistry I

Objective: In this experiment, we will predict a balanced equation for the reaction taking place, react to a known mass of NaHCO 3 with excess HCl, calculate the mole ratio between NaHCO 3 and NaCl., and determine whether your results support the Law of Conservation of Mass Results and Discussions: Table 1: shows the masses of measurements taken Mass (g) Calculations and observations Mass of glassware and watch glass 44.1428 g Mass of 𝑁𝑎𝐻𝐶𝑂 used 3 2.52 g 𝑁𝑎𝐻𝐶𝑂 is a white solid. When HCl was 3 added gas was released. Mass of glassware and watch glass & product 45.7668 g Mass of product 1.6240 g 45.7768g - 44.1428 g Post-lab Questions:

  1. 0.0300 moles used in this reaction. 𝑁𝑎𝐻𝐶𝑂 3 𝑢𝑠𝑒𝑑 𝑀𝑜𝑙𝑒𝑐𝑢𝑙𝑎𝑟 𝑚𝑎𝑠𝑠 𝑓𝑜𝑟 𝑁𝑎𝐻𝐶𝑂 3 =^ # 𝑜𝑓 𝑚𝑜𝑙𝑒𝑠^ 2.52 𝑔 84.01 𝑔 =
  2. NaCl→ 23 g + 35. 45 g = 58.45 g NaCl has the same number of moles as 𝑁𝑎𝐻𝐶𝑂 3 58.45 g x 0.0300 mol = 1.75 g We can produce 1.75g of moles of NaCl.
    1. 0300 𝑚𝑜𝑙 𝑥 (6. 023 𝑥 23 ) = 1. 80 𝑥 10 22
    2. 80 𝑥 10 moles of we would produce. 22 𝐻 2

a. An excess amount of HCl was added to make sure there were enough moles of HCl. 2