This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Hematite is the mineral form of iron(III) oxide. Calculate the number of iron ions in 20.0 kg of ... (Read 99 times)

mspears3

  • Hero Member
  • *****
  • Posts: 586
on: Nov 18, 2019

Question 1

How many atoms of carbon are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99 g mol-1.
◦ 3.68 × 1023 C atoms
◦ 1.10 × 1024 C atoms
◦ 2.87 × 1025 C atoms
◦ 2.96 × 1024 C atoms
◦ 1.23 × 1023 C atoms

Question 2

Hematite is the mineral form of iron(III) oxide. Calculate the number of iron ions in 20.0 kg of pure hematite.
◦ 1.51 × 1026
◦ 7.54 × 1025
◦ 9.62 × 1021
◦ 6.63 × 10-27
◦ 3.77 × 1017
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by mspears3 on Nov 18, 2019

bbburns21

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Nov 18, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 55% of students answer this correctly


mspears3

  • Member
  • Posts: 586
Reply 2 on: Nov 18, 2019
Thanks for the timely response, appreciate it

xthemafja

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Hot Springs Form on the Seafloor Near Spreading Centers Hot Springs Form on the Seafloor Near Spreading Centers
Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f
How to calculate present value (Question 2) How to calculate present value (Question 2)
The charge for telephone calls T is partly constant and partly varies with the number N of ... The charge for telephone calls T is partly constant and partly varies with the number N of ...
Number line (5 - 1) Number line (5 - 1)
How mitosis maintains the chromosome number. How mitosis maintains the chromosome number.
Video: Molecules, Membrane Permeability and Structure

For a complete list of videos, visit our video library