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
dexar [7]
3 years ago
15

What is the molar mass of CaCl2?

Chemistry
1 answer:
kherson [118]3 years ago
3 0

Answer: The correct option is 1.11\times 10^{2} g/mol

Explanation:

Atomic mass of calcium ,Ca = 40.07 g/mol

Atomic mass of chlorine ,Cl = 35.5  g/mol

Molar mass of CaCl_2:

= (Atomic mass of Ca+2 × (Atomic mass of Cl))

= (40.07 g/mol + (2 × 35.5))=111.07 g/mol

111.07=1.1107\times 10^{2} g/mol\approx 1.11\times 10^{2} g/mol

Hence, the correct option is 1.11\times 10^{2} g/mol



You might be interested in
Determine the number of moles of iodine that reacts with 50g of aluminum​
frozen [14]

Answer: The correct answer is option B i.e., 2.78 mol

Explanation:

Aluminium reacts with iodine to form Aluminium iodide

$2Al(s)+3I_{2}(s) \to Al_{2}I_{6}(s)$

From the equation, it is clear that 3 moles of iodine reacts with 2 moles of Aluminium to form Aluminium iodide

We know $No.\,of\,moles=\frac{weight}{molecular\,weight} \\

For 2 moles of Aluminium, $2=\frac{weight}{27}$\\ $weight=2 \times 27=54g$

3 moles of Iodine reacts with 54 g of Aluminium

? moles of iodine react with 50 g of Aluminium

$=\frac{3 \times 50}{54} =2.78 mol$

8 0
3 years ago
.Which best describes the structure of 2-butene?
yan [13]

Answer:

A.

Explanation:

The 2 - butene is an alkene with the formula C4H8, which can be used as the polybutene monomer or co-polymer. It is a compressed liquefied gas colorless, highly flammable characteristic odor. Prolonged exposure to this gas can cause frostbite causing a lowering of consciousness. Its formula is C4H8 and it is made up of 4 carbon atoms.

The best structure that describes 2-butene is that of Option A.

8 0
2 years ago
How many protons, neutrons, and electrons are there in one atom of 'H ?
kolezko [41]

Answer:

1

Explanation:

8 0
3 years ago
How do you make a guy who is extremely into you, even though he knows you aren't single, to bug off?
kvasek [131]
Be kind yk? tell him have some respect for your relationship and if he can't then cut him off completely
3 0
3 years ago
Read 2 more answers
How much thermal energy (q) is required to heat 15.2g of a metal (specific heat=0.397J/C) from 21.0C to 40.3C? Show steps please
Elena L [17]
Q = ?

Cp = 0.397 J/ºC

Δt =  40.3 - 21.0<span> => 19.3</span><span> ºC</span>

m = 15.2 g

Q = m x Cp x Δt

Q = 15.2 x 0.397 x 19.3

Q ≈ 116.46 J

<span>hope this helps! </span>
7 0
3 years ago
Other questions:
  • A possible answer to a scientific question is known as
    13·1 answer
  • What is the pH of a 0.025 M [OH−] solution?<br><br> 0.94<br><br> 1.60<br><br> 9.60<br><br> 12.40
    6·2 answers
  • Convert 86,000 cm into km
    6·2 answers
  • Energy from the sun what happens to the radiation ?
    9·1 answer
  • What are the first and last terms of the following series ?
    14·1 answer
  • Vaporization is the reverse of
    12·1 answer
  • What is the name of this molecule?
    14·1 answer
  • P + O2 → P4O10 balance the equation
    12·1 answer
  • I need some help please
    5·1 answer
  • 1) How many Joules of energy are released when 75g of water is heated
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!