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
Karo-lina-s [1.5K]
2 years ago
8

What is the mass of 2.14 mol CaCl2?

Chemistry
1 answer:
balu736 [363]2 years ago
5 0

Answer:

237.5 grams CaCl2

Explanation:

Use the periodic table to calculate the mass of CaCl2

40.078+(35.45*2)=110.97800

Convert: 2.14 mol CaCl2 * 110.98g CaCl2/1 mol CaCl2 = 237.4972 g

You might be interested in
If the pressure of a gas is 100 kPa when the volume is measured to be 500 mL. What pressure would need to be exerted to have the
Korvikt [17]

Answer:

p2=125 kpa

Explanation:

Using Boyle's law

p1 x v1 = p2 x v2

p1=100kpa

v1=500ml

p2=?

v2=400ml

p2= (100x500)\400

p2=125 kpa

:)

8 0
3 years ago
Describe the makeup of Earth’s atmosphere. How do solids get into the air?​
Alex17521 [72]
Earth's atmosphere is 78% nitrogen, 21% oxygen, 0.9% argon, and 0.03% carbon dioxide with very small percentages of other elements. Our atmosphere also contains water vapor. In addition, Earth's atmosphere contains traces of dust particles, pollen, plant grains and other solid particles.
5 0
3 years ago
Read 2 more answers
What forces hold network solids together?
mezya [45]

Answer:

Covalent solids, also called network solids, are solids that are held together by covalent bonds. As such, they need localized electrons (shared between the atoms) and therefore the atoms are arranged in fixed geometries. Distortion far from this geometry can only occur through a breaking of covalent sigma bonds.

Pls help i need one more brainly to rank up. And have a great day :D

5 0
3 years ago
PLEASE HELPPPP IM GIVING THE TEST RN
Tom [10]

Answer:

answer is c

Explanation:

single replacement

6 0
2 years ago
A 248-g piece of copper is dropped into 390 mL of water at 22.6 °C. The final temperature of the water was measured as 39.9 °C.
max2010maxim [7]

Answer:

The answer to your question is: Initial temperature of copper = 67.1°C

Explanation:

Data

mass Copper = 248 g

volume Water = 390 ml

T1 water = 22.6°C

T2           = 39.9°C

T1 copper = ?

Specific heat water = 1 cal/g°C

Specific heat copper = 0.092 cal/g°C

Formula       copper             water

Heat is negative for copper because it releases heat

                  - mCp(T2 - T1) = mCp(T2 - T1)                  

                  - (248)(39.9 - T1) = 390 (1)((39.9 - 22.6)           Substitution

                 -9895.2 + 248T1 = 390(17.3)                             Simplification

                 -9895.2 + 248T1 = 6747

                 248 T1 = 6747 + 9895.2

                 248 T1 = 16642.2

                 T1 = 16642.2 / 248

                 T1 = 67.1 °C                                                         Result

6 0
3 years ago
Other questions:
  • What is the one way the otter is adapted to living in the moving water of a river
    15·1 answer
  • 1. Similarities between alchemy and chemistry include
    13·2 answers
  • A reaction vessel contains nh3, n2, and h2 at equilibrium at a certain temperature. the equilibrium concentrations are [n2] = 0.
    6·1 answer
  • Molecules can be constructed by combining atoms of the same element. True or false?
    11·2 answers
  • Which of the following is a diatomic molecule? <br> a. ca2- <br> b. n2 <br> c. kcl <br> d. mgcl2
    7·1 answer
  • Which happens when a reversible reaction reaches a state of chemical equilibrium?
    15·1 answer
  • Which of the following statements is true? Temperature is the same as heat. Heat can travel through a vacuum. Heat has shorter w
    12·2 answers
  • Which element, Phosphorus or Calcium, is more reactive? Why?
    6·1 answer
  • Rapidly expanding air molecules near a bolt of lighting cause a sound that is referred to as blank
    15·1 answer
  • During the process of succession,
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!