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 the volume of the rectangular prism below? A.38,832 mm3 B.480,000 mm3 C.499,200 mm3 D.501,120 mm3
Mkey [24]

Answer:

c.

Explanation:

8 0
3 years ago
What is the net force on a car stopped at a stop sign?
Diano4ka-milaya [45]
0 N stopping at stop sign.
5 0
3 years ago
Read 2 more answers
Calculate the pH of a buffer prepared by mixing 20.0 mL of 0.10 M acetic acid and 55.0 mL of 0.10 M sodium acetate
MatroZZZ [7]

Answer:

Calculate the pH of a buffer prepared by mixing 30.0 mL of 0.10 M acetic acid and 40.0 mL of 0.10 M sodium acetate.

3 0
3 years ago
What are the four most common problems that can arise in your motor design?
Nuetrik [128]

Electric motors are an essential part of our daily life as many systems, applications, and services depend on them. Motors today have a long service life and require a minimum level of maintenance to make sure that they perform efficiently. In large buildings, motors have to be maintained on a regular basis because they need to be in operation all the time; one small problem could cause a great loss to the organization.

Usually in large organizations, a motor maintenance program is carried out in which the causes of motor failures are identified and some necessary steps are taken to avoid them or lower their impact. Motors need to be inspected regularly, and other maintenance activities need to be performed to ensure efficient operation. Whenever a problem occurs, it should be corrected immediately to avoid further loss.

4 0
3 years ago
Hydrogen has three naturally occurring isotopes which figure into the average atomic mass found on the periodic table (1.00974):
Art [367]
The number following the name of the element is the number of subatomic particles inside the nucleus of the atom. This means that it is the mass number of the isotope. The average atomic mass of the element is the sum of the products of the percentage abundance and mass number of the naturally occurring isotopes. 

Since, the average atomic mass of the hydrogen is nearest to 1 then, the most abundant isotope should be hydrogen-1. 
8 0
3 years ago
Other questions:
  • Robots have been around since the 3rd century BC. At that time, they were mainly invented as toys to amuse the king or emperor.
    15·2 answers
  • What happens when you regurgitate?
    9·1 answer
  • Which of the following statements correctly explains the relationship between humidity and temperature? The higher the temperatu
    11·1 answer
  • 1 mole of a gas occupies 22.4 L at ________
    10·1 answer
  • How many times bigger is the solar system than the earth ?
    9·2 answers
  • Identify the solute and the solvent used in this investigation.
    7·1 answer
  • Distance time graphs are made by plotting data for time and what?
    14·1 answer
  • Coefficient -
    7·2 answers
  • True or false Compounds link up to make elements
    11·1 answer
  • Will give brainly
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!