« previous next »

Author Question: How many moles of NaCl are required to make 250 mL of a 3.00 M solution? A) 750 moles B) 0.750 ... (Read 18 times)

karateprodigy

  • Hero Member
  • *****
  • Posts: 550
on: Aug 27, 2018
How many moles of NaCl are required to make 250 mL of a 3.00 M solution?
 
  A) 750 moles
  B) 0.750 moles
  C) 3 moles
  D) 0.250 moles

Question 2

Which of the following elements does not have at least two differently charged cations?
 
  A) magnesium
  B) copper
  C) cobalt
  D) iron


Joy Chen

  • Sr. Member
  • ****
  • Posts: 354
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Forages, such as hay, are required by all horses Forages, such as hay, are required by all horses
Three Sushi Does Not Make an EggRoll Three Sushi Does Not Make an EggRoll
Good computer skills are now required to be a successful member of an office staff. Good computer skills are now required to be a successful member of an office staff.
High school science classes are required to use deductive logic High school science classes are required to use deductive logic
You make 4 semi-annual deposits starting at $350 and increasing at a constant rate of 2.14%. ... You make 4 semi-annual deposits starting at $350 and increasing at a constant rate of 2.14%. ...
Using the Ti plasmid to make a transgenic plant Using the Ti plasmid to make a transgenic plant
Video: Sex-Linked Traits! How are eye colors inherited in fruit flies?

For a complete list of videos, visit our video library