1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
oksian1 [2.3K]
3 years ago
13

Nick needs 3.5 moles of sodium fluoride (NaF) for a solution he is mixing in the lab. How many grams of NaF does Nick need to me

asure out?​
Chemistry
1 answer:
Minchanka [31]3 years ago
5 0

Answer:

147 g

Explanation:

<em>The number of moles of a substance is the ratio of the mass of the substance and the molar mass of that substance.</em> Mathematically,

  mole = mass of substance/molar mass

In this case, Nick needs 3.5 moles of NaF, the molar mass of NaF is calculated as:

  23 + 19 = 42 g/mol (Note: Na = 23, F = 19)

Hence,

mass of 3.5 mole NaF = mole x molar mass

                              = 3.5 x 42 = 147 g.

<em>Hence, Nick would need to measure out </em><em>147 g</em><em> NaF using a suitable weighing balance.</em>

You might be interested in
What is an exotoxin?
Elodia [21]
Exotoxin is a toxin secreted by bacteria. exotoxin can cause damage to the host by destroying cells or disrupting normal cellular metabolism
8 0
3 years ago
A student places a small amount of water in a glass dish and then carefully places a small paperclip on the surface of the water
rosijanka [135]
Include: 
- Adding cleanser makes the paperclip fall through the water to the base of the dish. 
- Soap is a surfactant. 
- Surfactants lessen the surface pressure of a fluid. 
- The surface strain of water is the thing that upheld the paper cut.
3 0
3 years ago
Read 2 more answers
A piece of metal has a volume of 30.0cm3 and a mass of 252g. What is its density? what metal do you think this is?
Alborosie

Answer:

Explanation:

  1. get density = D = m / V = 0.252 / 0.00003 = 8400
  2. metal will be Cu => bronze
3 0
3 years ago
Write a net ionic equation for the following:
Ann [662]

Explanation:

Al(OH)4-(aq) plus 4H plus (aq) and Al3 plus (aq) plus 4H20(I)

6 0
2 years ago
Which of the following affects cell potential?
Slav-nsk [51]

Answer:

the standard cell potential value

Explanation:

For every cell, we can calculate its standard electrode potential from the table of standard electrode potentials listed in many textbooks.

However, from Nernst's equation;

Ecell= E°cell - 0.0592/n log Q

Hence the standard cell potential (E°cell) affects the value of the calculated cell potential Ecell from Nernst's equation as stated above.

3 0
3 years ago
Other questions:
  • In order to complete a lab, your teacher needs a 3.0 M solution of sulfuric acid, but only has a 12.0 M stock solution of sulfur
    14·1 answer
  • __________ ammonium compounds are less effective against gram-negative bacteria and more effective against gram-positive bacteri
    9·1 answer
  • A shallow river dries up is an example of
    10·1 answer
  • Which has a higher freezing point, pure water or sea water?
    5·1 answer
  • calculate the freezing point of 3.46 gram of a compound X in 160 gram of benzene when a separate sample of X was vaporized it's
    14·1 answer
  • Please help asap!!!!!!!!!!! How many molecules are present in 0.5 moles of NaOH?
    9·1 answer
  • You will write 2-3 paragraphs about how you think the earth was formed
    6·2 answers
  • Create a list of 5 potential jobs that students of astronomy can obtain.
    9·2 answers
  • Moby eats three-sixths of a pizza. Which fraction is equivalent to three-sixths?​
    7·1 answer
  • Which statement best describes the density of an atom's nucleus?<br>​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!