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
Anastasy [175]
2 years ago
15

How many moles are in 2.00 g of NaCl?7

Chemistry
1 answer:
coldgirl [10]2 years ago
7 0

Answer:

              0.0342 moles

Explanation:

Moles and Mass are related as,

Moles = Mass / M.Mass

M.Mass of NaCl = 58.44 g/mol

Putting values,

Moles =  2.00 g / 58.44 g/mol

Moles = 0.0342 moles

You might be interested in
How is a metallic compound different from an ionic compound?
nata0808 [166]

Answer:

Ionic compounds are compounds whereas metals are elements. Ionic compounds are electrolytes whereas metals are conductors. Ionic compounds are brittle whereas metals are malleable and ductile. ... Most ionic compounds will dissolve in polar solvents like water whereas metals will either be insoluble or react with water.

8 0
3 years ago
By studying fossils, scientists get an idea of ....
Tema [17]
<span>By studying fossils, scientists get an idea of what the organisms looked like, what they ate, and how they lived. </span>
6 0
2 years ago
Which skin layer holds layers together
lions [1.4K]
The <span>epithelial hold the skin together.</span>
6 0
3 years ago
What is the concentration (in M) of a sample of the unknown dye with an absorbance of 0.25 at 542 nm?
Sladkaya [172]

Answer:

see explanation below

Explanation:

Question is incomplete, so in picture 1, you have a sample of this question with the missing data.

Now, in general terms, the absorbance of a substance can be calculated using the beer's law which is the following:

A = εlc

Where:

ε: molar absortivity

l: distance of the light in solution

c: concentration of solution

However, in this case, we have a plot line and a equation for this plot, so all we have to do is replace the given data into the equation and solve for x, which is the concentration.

the equation according to the plot is:

A = 15200c - 0.018

So solving for C for an absorbance of 0.25 is:

0.25 = 15200c - 0.018

0.25 + 0.018 = 15200c

0.268 = 15200c

c = 0.268/15200

c = 1.76x10⁻⁵ M

5 0
2 years ago
What Volume of silver metal will weigh exactly 2500.0g. The density of silver
Tems11 [23]

Answer:

cm3 = 2500.0 g / 10.5 g/cm3 = 238 cm3

5 0
3 years ago
Other questions:
  • All elements have a unique atomic emission spectrum. In which of the following scenarios would this fact be most useful?
    10·1 answer
  • Which of the following solutes will lower the freezing point of water the most? NaCl, CaCl2!or AlBr3
    15·1 answer
  • Inches of mercury (inHg) is commonly used as unit of atmospheric pressure. It indicates the height of Hg (in inch) that atmosphe
    13·1 answer
  • Which of the following regions of the periodic table tends to prefer a –1 charge and occupies Group 17?
    8·1 answer
  • if a layer of sandstone is in contact with a mass of granite that contain small pieces of the Sandstone which rock is older
    8·1 answer
  • A student increases the temperature of a 417cm³ balloon from 278k to 231k. Assuming constant pressure, what should the new volum
    12·1 answer
  • What is the formula weight (amu) of the molecule H2O? Use atomic masses of H and O as 1.008 amu and 16.00 amu respectively. Repo
    15·1 answer
  • How many atoms are in 4.25 g of Ag?
    12·1 answer
  • What are the chemical properties of acids​
    6·1 answer
  • Identify the correct type of heat transfer for A, B, and C in the picture. Using the picture, cite evidence for your choices.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!