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

Author Question: A 25 g sample of sugar is found to contain 51.4% oxygen by mass. Another 250 g sample of the same ... (Read 18 times)

kshipps

  • Hero Member
  • *****
  • Posts: 571
on: Jul 8, 2021

Question 1

A 1.4 g sample of calcium is reacted with 3.2 g of oxygen. The only product after the reaction is 1.96 g of CaO. How many grams of oxygen remains unreacted?
◦ 0.56 g
◦ 0.224 g
◦ 2.64 g
◦ 0.264 g
◦ 0.203 g

Question 2

A 25 g sample of sugar is found to contain 51.4% oxygen by mass. Another 250 g sample of the same sugar is also 51.4% oxygen by mass. This is consistent with the:
◦ law of conservation of mass
◦ law of constant composition
◦ law of multiple proportions
◦ first assumption of Dalton's atomic theory
◦ second assumption of Dalton's theory
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by kshipps on Jul 8, 2021

leahchrapun

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 8, 2021
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 25% of students answer this correctly


kshipps

  • Member
  • Posts: 571
Reply 2 on: Jul 8, 2021
Thanks for the timely response, appreciate it

tandmlomax84

  • Member
  • Posts: 323
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

The human oxygen-hemoglobin dissociation curve. The human oxygen-hemoglobin dissociation curve.
Amino acids not found in proteins Amino acids not found in proteins
The hemes found in cytochromes The hemes found in cytochromes
Silicon-oxygen tetrahedron Silicon-oxygen tetrahedron
The mole fraction of oxygen in dry air near sea level is 0.20948, where the molar mass of ... The mole fraction of oxygen in dry air near sea level is 0.20948, where the molar mass of ...
Gravitational Force Due to a Distribution of Mass problem 2 Gravitational Force Due to a Distribution of Mass problem 2
Video: Green alga life cycle Animation

For a complete list of videos, visit our video library