lolamohamed5031 lolamohamed5031
  • 21-09-2021
  • Chemistry
contestada

How many molecules are in 7 g of H2O

Respuesta :

haliburtonm haliburtonm
  • 21-09-2021

Answer:

0.38

Explanation:its right bc it is

Answer Link
junack12
junack12 junack12
  • 21-09-2021

Answer:

2.342*10^23

Explanation:

# of molecules = Moles * NA

# of molecules = (Mass in grams) / (Molar Mass) * NA

Molar Mass of H2O = 18g/mol

Avogadro's number(NA) = 6.022*10^23

Now,

# of molecules = (7g/18gmol)*(6.022*10^23) = 2.342 * 10^23

Answer Link

Otras preguntas

simplify and solve each equation for the x
The Islamic faith has the second largest population of followers in the world. True or false?
The scale of a map 2in=7feet.If the map distance is 11 inches what is the actual distance
The Renaissance can BEST be compared in its culture and civilization to that ofa. ancient Persia.b. ancient Greece.c. Roman Empire.d. the Middle Ages.​
What would be different about the heat of fusion & vaporization ? and why?​
125×64 in expanded form​
The sum for 6,498.123
In the periodic table, the most reactive metals are found a. in Group 1, the first column on the left. b. in Period 1, the first row across the top. c. in Group
Differentiate between Carnivores and herbivores animals ? Give 2 examples.
4. Give the sum of the prime factors of 10.