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Andrews [41]
2 years ago
11

Calculate the molar mass of each of the following: (a) SnO

Chemistry
1 answer:
Andrei [34K]2 years ago
6 0

The molar mass of SnO is  134.71 g/mol .

Molar mass of SnO is calculated as follows ,

  • Make use of the chemical formula to determine the number of atoms of each element in the compound.
  • Multiply the atomic weight of each element with its number of atoms present in the compound.
  • Add up all and assign unit as grams/mole.

Example : molar mass of SnO = atomic weight of Sn + atomic weight of O

molar mass of SnO =118.71 + 16 = 134.71 g / mol

To learn more about molar mass please click here ,

brainly.com/question/12127540

#SPJ4

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When adding the measurements 42.1014 g + 190.5 g, the answer has ___ significant figures.
andrezito [222]

Answer: The answer has 7 significant figures

Explanation:

 The addition of  190.5  and 42.1014 will give 232.6014.  Counting the digits will give 7 significant figures.

4 0
4 years ago
The main constituent of gallstones is cholesterol. Cholesterol may have a role in heart attacks and blood clot formation. Its el
Nataly [62]

The main constituent of gallstones is cholesterol. Cholesterol may have a role in heart attacks and blood clot formation. Its elemental percentage composition is 83.87% C, 11.99% H, and 4.14% O. It has a molecular weight of 386.64 amu. Empirical formula is C₃H₄O₁ and Molecular formula is 7(C₃H₄O₁).

<h3>What is Empirical Formula ?</h3>

Empirical formula is the simplest whole number ratio of atoms present in given compound.

Element   %   Atomic mass   Relative no. of atoms  Simplest whole ratio

C            83.87       12                     \frac{83.87}{12} = 6.98                   \frac{6.98}{0.25} = 3

H            11.99         1                       \frac{11.99}{1} = 11.09                  \frac{11.09}{0.25} = 4

O            4.14          16                      \frac{4.14}{16} = 0.25                    \frac{0.25}{0.25} = 1

Thus the empirical formula is C₃H₄O₁.

<h3>How to find the Molecular formula of compound ?</h3>

Molecular formula = Empirical formula × n

n = \frac{\text{Molecular weight}}{\text{Empirical formula weight}}

  = \frac{386.64}{56}

  = 7

Molecular formula = Empirical formula × n

                               = 7 (C₃H₄O₁)

Thus from the above conclusion we can say that The main constituent of gallstones is cholesterol. Cholesterol may have a role in heart attacks and blood clot formation. Its elemental percentage composition is 83.87% C, 11.99% H, and 4.14% O. It has a molecular weight of 386.64 amu. Empirical formula is C₃H₄O₁ and Molecular formula is 7(C₃H₄O₁).

Learn more about the Empirical Formula here: brainly.com/question/1603500

#SPJ4

7 0
2 years ago
Ice is actually frozen ______
sergeinik [125]

Answer:

water

Explanation:

or h2o i mean theyre the same thing soo..

8 0
3 years ago
Read 2 more answers
The colour imparted to a flame by calcium ion?
emmainna [20.7K]
The flame goes an Orange-Red colour.
6 0
3 years ago
For which structure(s) does the electron-bearing carbon atom have a formal charge of zero
AlladinOne [14]

Formal charge can be calculated from the following formula

Formal charge = valency of central atom - (number of lone pair of electrons + number of covalent bonds)

a) for methylene:

Formal charge = 4 -( 2+ 2) = 0

b) For methyl free radical

Formal charge = 4- (3 +1) = 0

6 0
3 years ago
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