This topic contains a solution. Click here to go to the answer

Author Question: Hematite is the mineral form of iron(III) oxide. Calculate the number of iron ions in 20.0 kg of ... (Read 103 times)

mspears3

  • Hero Member
  • *****
  • Posts: 586

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


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
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
Excellent


nyrave

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

For a complete list of videos, visit our video library