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

Author Question: An analysis showed a sample to contain 0.00471 grams of lead. How many micrograms is this? A) ... (Read 46 times)

clmills979

  • Hero Member
  • *****
  • Posts: 551
on: Aug 27, 2018
An analysis showed a sample to contain 0.00471 grams of lead. How many micrograms is this?
 
  A) 0.471 g
  B) 4.71  103 g
  C) 4.71  106 g
  D) 4.71  10-2 g
  E) 4.71  10-6 g

Question 2

What is the molarity of a solution prepared by dissolving 3.50 mol NaCl in enough water to make 1.50 L of solution?
 
  A) 0.429 M
  B) 2.33 M
  C) 5.25 M
  D) 87.8 M
  E) 137 M


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sultana.d

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

B


clmills979

  • Member
  • Posts: 551
Reply 2 on: Aug 27, 2018
Gracias!

adammoses97

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

A sample flow sheet. A sample flow sheet.
Downward Spiral of Poverty and Hunger Lack of food can lead to numerous other symptoms Downward Spiral of Poverty and Hunger Lack of food can lead to numerous other symptoms
A sample of reef biodiversity A sample of reef biodiversity
GENETIC ANALYSIS GENETIC ANALYSIS
Chi-Square Analysis of Mendel’s Trihybrid-Cross Data Chi-Square Analysis of Mendel’s Trihybrid-Cross Data
GENETIC ANALYSIS 15.1 (3 of 5) GENETIC ANALYSIS 15.1 (3 of 5)
Video: Baroreceptor Reflex

For a complete list of videos, visit our video library