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Kryger [21]
2 years ago
15

How many molecules of oxygen are needed to make 3.5 oxygens of water?​

Chemistry
1 answer:
max2010maxim [7]2 years ago
8 0

Answer:

57.6g

Explanation:

So, if in one mole of water, 16 g of oxygen atom is present. Then, in 3.6 moles of water, the mass of oxygen present will be 3.6×16=57.6g. Therefore, the amount of oxygen present in 3.6 g water is option (B)- 57.6 g.

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¿Qué objetos se pueden construir mediante los biomateriales metálicos?
Kobotan [32]

Answer:

https://uach.mx/articulo/2017/10/20/biomateriales-como-implantes-en-el-cuerpo-humano/

Explanation:

utilizar este sitio web

8 0
3 years ago
MASS = 10 Kg, Acceleration = 3 m/s/s, Force =
Orlov [11]

Answer:

The force is 30 N

Explanation:

We use the formula F= mx a

F= 10kg x 3m/s2

F= 30kgxm/s2= 30 Newton

7 0
3 years ago
Sulfur hexafluoride, a dense gas, is held in two separate containers in a storage room at an atmospheric pressure of 755 mmHg an
dimaraw [331]

Explanation:

As it is given that both the given containers are at same temperature and pressure, therefore they have the same density.

So, mass of SF_{6} in container- 1 is as follows.

    5.35 mol x molar mass of SF_{6}

            = 7.61 mol x 146.06 g/mol

             = 1111.52 g

Therefore, density of SF_{6} will be calculated as follows.

            Density = \frac{mass}{volume}  

         density = \frac{1111.52 g}{2.09 L \times 1000 ml/L}

                       = 0.532 g/mL

Now, mass of SF_{6} in container- 2 is calculated as follows.

        4.46 L x 1000 mL/L x 0.532 g/mL

            = 2372.72 g

Hence, calculate the moles of moles SF_{6} present in container 2 as follows.

  No. of moles = \frac{mass}{\text{molar mass}}  

                        = \frac{2372.72 g}{146.06 g/mol}

                        = 16.24 mol

Since, 1 mol SF_{6} contains 6 moles F atoms .

So, 16.24 mol  SF_{6} contains following number of atoms.

                = 16.24 mol \times 6

                = 97.46 mol

Thus, we can conclude that moles of F atoms in container 2 are 97.46 mol.

7 0
3 years ago
How many atoms of each element are in one molecule of 2-heptanone
Serhud [2]

Answer:

A chemical structure of a molecule includes the arrangement of atoms and the chemical bonds that hold the atoms together. The 2-HEPTANONE molecule contains a total of 21 bond(s) There are 7 non-H bond(s), 1 multiple bond(s), 4 rotatable bond(s), 1 double bond(s) and 1 ketone(s) (aliphatic).

4 0
3 years ago
Read 2 more answers
"Determine the results to the correct number of significant figures" (6.00g/ 16.1mL - 8.440mL)
nadezda [96]
You need to round to 3 significant digits.

0.783 g/ml
5 0
3 years ago
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