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
BabaBlast [244]
3 years ago
7

35.5 moles of lithium fluoride is dissolved in 65 L of solution

Chemistry
1 answer:
kkurt [141]3 years ago
3 0

Answer:

Explanation:

L

=

1.10

L

of solution

Explanation:

The Molarity

M

is calculated by the equation comparing moles of solute to liters of solution

M

=

m

o

l

L

For this question we are given the Molarity 0.88M

We are told the solute is a 25.2 gram sample of LiF, Lithium Fluoride

We can convert the mass of LiF to moles by dividing by the molar mass of LiF

Li = 6.94

F = 19.0

LiF = 25.94 g/mole

25.2

g

r

a

m

s

x

1

m

o

l

25.94

g

r

a

m

s

=

0.97

moles

Now we can take the the molarity and the moles and calculate the Liters of solution

M

=

m

o

l

L

M

L

=

m

o

l

L

=

m

o

l

M

L

=

0.97

m

o

l

0.88

M

L

=

1.10

L

of solution i just did look at my papaer

You might be interested in
A change in temperature is called a temperature _______________?
RUDIKE [14]
A change in temperature is called a temperature change
3 0
3 years ago
Which statement about spontaneous and nonspontaneous processes is correct? Spontaneous processes are favored by a decrease in H,
Marina86 [1]
I believe your answer would be the first one

hope this helps
7 0
3 years ago
Read 2 more answers
In the flame test, barium ions produce a green flame whereas calcium ions produce a red flame. In your own words, explain these
deff fn [24]

Answer:

The Barium flame is green because it is a difficult flame to excite, therefore for it to trigger a flame it is necessary that it be too excited for it to occur.

The reddish color of calcium is due to its high volatility and it is sometimes very difficult to differentiate it from strontium.the compression of these elements is due to being able to make them work during combustion

Explanation:

The flame test is a widely used qualitative analysis method to identify the presence of a certain chemical element in a sample. To carry it out you must have a gas burner. Usually a Bunsen burner, since the temperature of the flame is high enough to carry out the experience (a wick burner with an alcohol tank is not useful). The flame temperature of the Bunsen burner must first be adjusted until it is no longer yellowish and has a bluish hue to the body of the flame and a colorless envelope. Then the tip of a clean platinum or nichrome rod (an alloy of nickel and chromium), or failing that of glass, is impregnated with a small amount of the substance to be analyzed and, subsequently, the rod is introduced into the flame, trying to locate the tip in the least colored part of the flame.

The electrons in these will jump to higher levels from the lower levels and immediately (the time that an electron can be in higher levels is of the order of nanoseconds), they will emit energy in all directions in the form of electromagnetic radiation (light) of frequencies characteristics. This is what is called an atomic emission spectrum.

At a macroscopic level, it is observed that the sample, when heated in the flame, will provide a characteristic color to it. For example, if the tip of a rod is impregnated with a drop of Ca2 + solution (the previous notation indicates that it is the calcium ion, that is, the calcium atom that has lost two electrons), the color observed is brick red .

3 0
3 years ago
Read 2 more answers
An ostrich runs north in a straight line for 21 meters. She then turns around and runs 25 meters back toward her nest (south) on
drek231 [11]
The ostrich runs 21 N then goes back by 25 S

The displacement is -4 S

21 - 25 = -4
6 0
3 years ago
Describe the relationship between the radius of a cation and that of the atom from which it is formed. a. cations are much small
koban [17]
<h3><u>Answer;</u></h3>

Cations are much smaller than their corresponding parent

<h3><u>Explanation;</u></h3>
  • Parent atom has more electrons and thus the effective nuclear charge on each electron is less.
  • When a cation is formed electron(s) is/are lost. Thus the effective nuclear charge or simply put, the attraction of the nucleus towards the electrons increases. Therefore, due to greater pull, the nucleus pulls the shells towards it, there by reducing the size, which makes cations smaller than their corresponding parent.
3 0
2 years ago
Other questions:
  • What type of energy transformation takes place during cellular respiration? Use complete sentences to explain how energy is cons
    8·2 answers
  • What is the definition of enthalpy heat of vaporization?
    9·1 answer
  • Which change will create a more dilute solution?
    5·2 answers
  • Peppa Roney works in a pizza parlor. Her job is to make the pizzas with the proper amount of toppings so that every slice has ex
    11·1 answer
  • A well designed experiment can be replicated by other true or false
    10·2 answers
  • Which one of the following compounds will NOT be soluble in water? Which one of the following compounds will NOT be soluble in w
    5·1 answer
  • 9. Triacylglycerols are
    9·1 answer
  • In 11.06 grams of C5H11OH how many grams of water can be produced?
    10·1 answer
  • Jen and her partner were assigned the Zn/Zn cathode/anode pair which they used to construct their electrolytic cell. They decide
    6·1 answer
  • At 1 atmosphere and 20 degrees Celsius, all samples of H20(l) must have the same
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!