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

Author Question: How many moles and how many atoms of zinc are in a sample weighing 34.9 g? (Read 37 times)

sheilaspns

  • Hero Member
  • *****
  • Posts: 567

Question 1

What is the mass of one atom of the element hydrogen?
◦ 3.4 × 10-24 g
◦ 1.0 g
◦ 2.0 g
◦ 1.7 × 10-24 g

Question 2

How many moles and how many atoms of zinc are in a sample weighing 34.9 g?
◦ 0.533 mol, 8.85 × 10-25 atoms
◦ 1.87 mol, 1.13 × 1024 atoms
◦ 0.533 mol, 3.21 × 1023 atoms
◦ 1.87 mol, 3.10 × 10-24 atoms


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by sheilaspns on Feb 15, 2020

coyin

  • Sr. Member
  • ****
  • Posts: 334
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




sheilaspns

  • Member
  • Posts: 567
Reply 2 on: Feb 15, 2020
Gracias!


nathang24

  • Member
  • Posts: 314
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

For a complete list of videos, visit our video library