1. Naturally occurring copper has two isotopes with relative atomic masses 62.9 3 and 64.928. if the average relative atomic mass is 63.546, what are the relat ve % abundances of the two isotopes in this sample. 2. Magnesium hydroxide, Mg(OH)2, can be commonly found in antacids. Calcula te the percentage composition, by mass, of each element in magnesium hydro

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
icon
Related questions
Question
100%
Help me answer question 1-5 with all the necessary steps
10:39 pm
( More
CHM101 ASSIG..
LEVY MWANAWASA MEDICAL UNIVERSITY
INSTITUTE OF BASIC AND BIOMEDICAL SCIENCES
NATURAL SCIENCES DEPARTMENT: CHEMISTRY SECTION
ACADEMIC YEAR 2020/2021 TERM 1
CHM 101: FOUNDATION CHEMISTRY
13th April 2021
ASSIGNMENT (ONE) 1: DUE 20TH April 2021
1. Naturally occurring copper has two isotopes with relativeatomic masses 62.9
3 and 64.928. if the average relative atomic mass is 63.546, what are the relati
ve % abundances of the two isotopes in this sample.
2. Magnesium hydroxide, Mg(OH)2, can be commonly found in antacids. Calcula
te the percentage composition, by mass, of each element in magnesium hydro
xide.
3. 21.2 g sample of a compound that contained carbon, hydrogen, and oxygen w
as burned in excess oxygen. The water (H0) that was produced weighed 10.8
Ogand the carbon dioxide (CO2) weighed 26.40 g. The molar mass of the com
pound was determined to be 212 g/mol. What is the molecular formula of the
compound?
4. A solution of 100.00 mL of 0.2000 mol/L sodium carbonate and 200.00 mL of
0.1000 mol/L calcium nitrate solution are mixed together according to the rea
ction:
NaCO, (ag) + Ca (NO), (ag) - Caco, (s) + 2Na NO,(ag)
(a) Calculate the mass of calcium carbonate that would precipitate.
(b) What is the concentration of sodium nitrate solution that will be produced?
5. Silver reacts with hydrogen sulphide gas, and oxygen according to the reactio
n:
Ag(s) + 2H S(9) +0,l9) -2Ao, S (g) + 2H,0(g)
How many grams of silver sulphide are formed when 1.90 g of silver reacts with
0.280 g of hydrogen sulphide and 0.160 g of oxygen?
6. Ammonia nitrate is produced when ammonia is combined with nitric acid as s
1|Pagel
Q
Edit
Fit screen
Search
Save as
Transcribed Image Text:10:39 pm ( More CHM101 ASSIG.. LEVY MWANAWASA MEDICAL UNIVERSITY INSTITUTE OF BASIC AND BIOMEDICAL SCIENCES NATURAL SCIENCES DEPARTMENT: CHEMISTRY SECTION ACADEMIC YEAR 2020/2021 TERM 1 CHM 101: FOUNDATION CHEMISTRY 13th April 2021 ASSIGNMENT (ONE) 1: DUE 20TH April 2021 1. Naturally occurring copper has two isotopes with relativeatomic masses 62.9 3 and 64.928. if the average relative atomic mass is 63.546, what are the relati ve % abundances of the two isotopes in this sample. 2. Magnesium hydroxide, Mg(OH)2, can be commonly found in antacids. Calcula te the percentage composition, by mass, of each element in magnesium hydro xide. 3. 21.2 g sample of a compound that contained carbon, hydrogen, and oxygen w as burned in excess oxygen. The water (H0) that was produced weighed 10.8 Ogand the carbon dioxide (CO2) weighed 26.40 g. The molar mass of the com pound was determined to be 212 g/mol. What is the molecular formula of the compound? 4. A solution of 100.00 mL of 0.2000 mol/L sodium carbonate and 200.00 mL of 0.1000 mol/L calcium nitrate solution are mixed together according to the rea ction: NaCO, (ag) + Ca (NO), (ag) - Caco, (s) + 2Na NO,(ag) (a) Calculate the mass of calcium carbonate that would precipitate. (b) What is the concentration of sodium nitrate solution that will be produced? 5. Silver reacts with hydrogen sulphide gas, and oxygen according to the reactio n: Ag(s) + 2H S(9) +0,l9) -2Ao, S (g) + 2H,0(g) How many grams of silver sulphide are formed when 1.90 g of silver reacts with 0.280 g of hydrogen sulphide and 0.160 g of oxygen? 6. Ammonia nitrate is produced when ammonia is combined with nitric acid as s 1|Pagel Q Edit Fit screen Search Save as
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Tools in Analytical Chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY