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
nignag [31]
3 years ago
8

***BRAINLIEST ASNWERRR***How many grams are in 34.2 moles of Lithium (Li)?​

Chemistry
1 answer:
Step2247 [10]3 years ago
3 0

Mass of Li = 237.38 g

<h3>Further explanation</h3>

The mole itself is the number of particles contained in a substance amounting to 6.02.10²³  

\large {\boxed {\boxed {\bold {mol = \frac {mass} {molar \: mass}}}}

<h3>Known</h3>

Moles of Li = 34.2

Molar mass(MW) of Li = 6.941 g/mol

then mass of Lithium (Li) :

\tt mol=\dfrac{mass}{MW}\\\\mass=mol\times MW\\\\mass=34.2\times 6,941~g/mol\\\\mass=\boxed{\bold{237.38~g}}

You might be interested in
What is most likely the amount of energy available at a trophic level of tertiary consumers if the amount of energy available to
meriva

Answer:

D.) 2,000 kilocalories would be the correct answer.

Explanation:

4 0
2 years ago
Read 2 more answers
How many atoms are in 5.2 moles of Na ?
Nastasia [14]

One mole of a substance is defined by Avogadro as consisting of 6.022 x 1023 atoms. This is Avogadro's number. To calculate the number of atoms in two moles of sodium, use dimensional analysis. 2.0 moles Na x 6.022⋅1023g1mol=1.20⋅1024 atoms of Na

8 0
2 years ago
When we combine two simpler substances into a more complex one, it is known as a reaction.
Nata [24]

Answer:

It would be known as a chemical reaction or a chemical compound.

3 0
2 years ago
Aluminum has a density of 2.70 g/mL. Calculate the mass (in grams) of a piece of aluminum having a volume of 264 mL .
gavmur [86]
The formula for density is:

D = m/v

We can use the formula to figure out the mass because we already know two of the three values (we are given the density and volume), so we only have to solve for <em>m. </em>If we plug our given values into the formula, we get:

2.70 = m / 264

Now, all we need to do is solve for <em>m</em>. The goal is to get <em>m</em> on one side of the equation, and all we have to do is multiply each side of the equation by 264:

264 × 2.70 = (m÷264) × 264

264 × 2.70 = m

m = 712.8

The mass of the piece of aluminum is 712.8 grams.
4 0
3 years ago
Using Models to Answer Questions About Systems
viva [34]
1A: The legs can be a adjusted, as well as the sand can be swapped out. It’s a very good design for running multiple tests.
1B: He could add books or something under the front or back legs in order to increase/decrease the incline, therefore imitating the hypothesis.
1C: He can change out the sand grains to finer ones, or coarser ones, and record his results of each test.
2: If he sets the model at a steep incline and tests it with coarse sand and fine sand, seeing which one makes a narrower, deeper hole.
5 0
3 years ago
Read 2 more answers
Other questions:
  • How many moles of PBr3 contain 3.68 x 10^25 bromine atoms?
    11·2 answers
  • Which of the following apply to gases. Select all that apply. Gas collisions are elastic. Gases mix faster than solids or liquid
    12·2 answers
  • How many moles of ions are produced by the dissociation of 0.5 mol of na2co3?
    11·2 answers
  • Process in which water vapor turns to liquid
    7·2 answers
  • An unidentified compound contains only phosphorous and fluorine, meaning we could write its formula as PxFy. Heating 0.2324 g of
    5·1 answer
  • Which elements from the list would be likely to form an ionic bond with chlorine, Cl?
    6·1 answer
  • Para preparar 1 kilogramo de arcilla se requieren 400 gramos de agua. Si a nivel del laboratorio solo se cuenta con una probeta
    9·1 answer
  • A key bed is a layer of rock that looks similar to the layers around it.
    11·1 answer
  • Which 3 characteristics are used to describe all waves, regardless of type? Check all that apply.
    5·2 answers
  • Calculate the number of grams nitric acid (HNO3) in 375 L of a 1.00 M solution.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!