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matrenka [14]
3 years ago
7

What are the molecular mass of the starting substance of 2NaCl + 2H2O → 2NaOH + Cl2 + H2

Chemistry
1 answer:
kaheart [24]3 years ago
3 0

Using the periodic table, what are the molecular masses of the starting and ending substances?

NaCl =

g/mole

Cl2 =

g/mole

58.44

70.90

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Pls help! I’m not very smart so please explain it to me!
Fantom [35]

Answer:

3.01  x 10²¹

Explanation:

Molar mass of h₂o =18.01528 g/mol.

it means 1 mole h₂o=18.01528 g .....(1)

1 mole = 6.022 × 10^23 molecules

so,

1 mole  h₂o =6.022 × 10^23 molecules=18.01528 g  [from 01]

now,

18.01528 g h₂o has= 6.022 × 10^23 molecules

9.00x10⁻² g h₂o has= ( 6.022 × 10^23 x 9.00x10⁻² ) /18.01528 molecules

                                  =3.008 x 10²¹ molecules

                                  ≈ 3.01  x 10²¹ molecules

3 0
3 years ago
Read 2 more answers
Laura jala un trineo una distancia de 2000 cm usando una cuerda, con una tensión constante de 80 N. La tarea requiere de 800 J d
Andre45 [30]

Respuesta:

60°

Explicación:

Paso 1: Información dada

  • Distancia recorrida (d): 2000 cm
  • Fuerza aplicada (F): 80 N
  • Trabajo realizado (W): 800 J

Paso 2: Convertir "d" a metros

Usaremos el factor de conversión 1 m = 100 cm.

2000 cm × 1 m/100 cm = 20 m

Paso 3: Calcular el ángulo entre la cuerda y el suelo (θ)

W = F × d × cosθ

800 J = 80 N × 20 m × cosθ

θ = 60°

5 0
3 years ago
Please help please help
otez555 [7]

Answer:

The mass percentage of chlorine is 60.66 % chlorine in the compound sodium chloride.

Explanation:

3 0
3 years ago
How does gravity affect the moon?
Shalnov [3]
A, The moon pulls on the earth making the tides rise and fall
8 0
3 years ago
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What is the mass of 6.14x10^25 atoms of gold
Alexxx [7]

3452.6^15 atoms of gold.

3 0
3 years ago
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