Author Question: Calculate the molar mass for isopropyl alcohol, C3H7OH. A. 59.09 g B. 60.00 g C. 60.10 g D. ... (Read 121 times)

tichca

  • Hero Member
  • *****
  • Posts: 554
Calculate the molar mass for isopropyl alcohol, C3H7OH.
 
  A. 59.09 g
   B. 60.00 g
   C. 60.10 g
   D. 61.10 g

Question 2

If we start with 1.000 g of strontium-90, 0.805 g will remain after 9.00 yr. This means that the half-life of strontium-90 is ________ yr.
 
  A) 7.74
  B) 11.2
  C) 28.8
  D) 7.25
  E) 41.6



rosiehomeworddo

  • Sr. Member
  • ****
  • Posts: 306
Answer to Question 1

C

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

For a complete list of videos, visit our video library