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
miskamm [114]
3 years ago
7

Nurse Antonio measured out 7 grams of sodium chloride (NaCI). Using dimensional analysis, calculate how many moles of NaCI he we

ighed out.
Chemistry
1 answer:
Neporo4naja [7]3 years ago
6 0

Answer:

0.119 moles

Explanation:

Given that,

Mass measured by Nurse Antonio is 7 grams of NaCl

To find,

The no of moles of NaCl

Solution,

The number of moles is given by

n=\dfrac{m}{M}

m is given mass

M is molar mass

For NaCl, molar mass is 23+35.5 = 58.5 grams

So,

n=\dfrac{7}{58.5}\\\\n=0.119\ \text{moles}

Therefore, there are 0.119 moles of NaCl.

You might be interested in
the following data were collected. time, s [A], M 0 1.00 1 0.430 2 0.270 3 0.200 4 0.160 What is the order of the reaction and t
Tems11 [23]

Answer:

I'll give you the graphs that you need to look at:1st order: the graph you need to make is ln[A] vs t. If you get a straight line, the reaction is 1st order and the slope will equal to the rate constant K.2nd order: the graph you need to make is 1/ln[A] vs t. If this graph shows a straight line, the reaction is 2nd order and the slope will equal the rate constant K.

Explanation:

7 0
3 years ago
Someone help me on these two 2
prisoha [69]

Answer:

Question 4 is- Solubility

Question 5 is- Suspension

Hopes this helps >:D

6 0
3 years ago
How many electrons does a carbon atom have? How many of these are valence electrons?
Svetllana [295]
It has 6 electrons, and 4 valence electrons
4 0
3 years ago
Read 2 more answers
What were some reasons why it was a good idea to remove the lid from the separatory funnel after each extraction? Select all tha
masya89 [10]
Liquid will no pour out. At the bottom the separating funnel consists of a valve it allow the liquid to flow out.The lid is on the top to pour in liquid from the top,it is air tight. Therefore as long as the lid is put, the liquid will not flow out at the bottom. The reason is that ,the incoming air has no way to get into the flask.
3 0
3 years ago
Ordinary water boils at 100°C. Can it be made to boil at 95°C or 105°C.​
slava [35]

It can be done. Normally the boiling point of water is 100°C. It will boil at temperature greater than 100°C more quickly. Water can be boiled at 95°C but for that the atmospheric pressure of the water should be decreased which will decrease the boiling point of water.

<h3>Concept :</h3>

To boil water at 95°C, decrease the atmospheric pressure.

At 105°C, the water will be boiling quickly than normal at 100°C.

4 0
2 years ago
Read 2 more answers
Other questions:
  • In which reaction is the first ionization energy greatest?1.na + energy → na+ + e−2.k + energy → k+ + e−3.mg + energy → mg+ + e−
    7·2 answers
  • What do the following elements have in common? No, Bk, U, Th, Rn, At
    6·2 answers
  • What do carbon 12 carbon 13 and carbon 14 have in common?
    7·1 answer
  • Describe why hydrogen bonds form between water molecules
    5·1 answer
  • Determine the rate of a reaction that follows the rate law:
    13·2 answers
  • Balance the following equation using the smallest whole number coefficients:
    15·1 answer
  • I’ll mark you brainlist
    10·2 answers
  • Can someone please help!
    15·1 answer
  • Suppose 2.00 mol of an ideal, monatomic gas is initially at a pressure of 3.00 atm and a temperature T = 350 K. It is expanded i
    12·1 answer
  • Workout the number of atoms in 0.5 moles of iron?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!