« previous next »

Author Question: A solution of aqueous ferric chloride has a concentration of 15 ppm. What does this tell us about ... (Read 111 times)

Shelles

  • Hero Member
  • *****
  • Posts: 582
on: Jun 25, 2018
A solution of aqueous ferric chloride has a concentration of 15 ppm. What does this tell us about the amount of ferric chloride in the solution?
 
  A) There are 15 grams of ferric chloride in every 1,000,000 grams of solution.
  B) There are 15 grams of ferric chloride in every 1,000,000 mL of solution.
  C) There are 15 mL of ferric chloride in every 1,000,000 mL of solution.
  D) Both A and B are correct.

Question 2

Which of the following features about a thromboplastin preparation is necessary for accurate results?
 
  A) Serial dilutions must be made of the thromboplastin preparation and measured to create a standard curve.
  B) The international sensitivity index (ISI) of the thromboplastin preparation should be close to 1.
  C) The thromboplastin preparation must be made by and purchased from the International Standardization Committee.
  D) The thromboplastin preparation must be tested and certified by the World Health Organization (WHO).


Mholman93

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jun 25, 2018
Answer to Question 1

D

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Geoengineering is not a solution to climate change Geoengineering is not a solution to climate change
Calculate the pH of a solution formed by mixing 120.0 mL of 0.30 M HClO with 1180.0 mL of 0.20 ... Calculate the pH of a solution formed by mixing 120.0 mL of 0.30 M HClO with 1180.0 mL of 0.20 ...
What is the concentration of HNO3 in the final solution when 70.0 mL of a 6.00 M HNO3 solution ... What is the concentration of HNO3 in the final solution when 70.0 mL of a 6.00 M HNO3 solution ...
0.300 moles of sodium nitrite are needed for a reaction. The solution is 0.450 M. How many mL ... 0.300 moles of sodium nitrite are needed for a reaction. The solution is 0.450 M. How many mL ...
He element M forms the chloride MCl4 containing 75.0% Cl by mass. What is the atomic weight of ... He element M forms the chloride MCl4 containing 75.0% Cl by mass. What is the atomic weight of ...
Which of the following is not a unit factor related to a 10.0% aqueous solution Which of the following is not a unit factor related to a 10.0% aqueous solution
Video: Interview with an Anorexic Woman (Part 1 of 2)

For a complete list of videos, visit our video library