How many molecules are there in 79g of Fe2O3? how many atoms is thi

1 answer:

Nookie1986 [14]3 years ago

7 0

Molar mass of iron(III) oxide is 160g/mol

160g ----------- of iron(III) oxide is ---------------- 6.02*10²³molecules
79g ----------- of iron(III) oxide is ---------------- x

x = [6.02*10²³*79g]/160g ≈ 2.97*10²³ molecules

You might be interested in

Explain how physical and chemical properties influence the formation of ocean current and the distribution of marine life.

tia_tia [17]

<h2>Answer:</h2>

The physical and chemical properties of seawater vary according to latitude, depth, nearness to land, and input of fresh water. The physical and chemical properties of seawater have a great effect on organisms, varying especially with the size of the creature. Marine organisms have evolved a wide variety of unique physiological and morphological features that allow them to live in the sea.

Hopefully Help:)

#CarryOnLearning

5 0

2 years ago

What is the pH of a solution that contains 25 grams of hydrochloric acid (hcl) dissolved in 1.5 liters of water?

Darina [25.2K]

First we calculate the concentration of HCl:

Moles = mass / Mr
= 25 / 36.5
= 0.685 mol

Concentration = 0.685/1.5 = 0.457 mol / dm³

For a strong monoprotic acid, the concentration of hydrogen ions is equal to the acid concentration.

pH = -log[H+]
pH = -log(0.457)
= 0.34

4 0

3 years ago

Which of the following devices can measure only atmospheric pressure? A. Pressure gauge B. Mercury tube C. Tire gauge D. Baromet

kap26 [50]

D. Barometer. Hope this helps

4 0

3 years ago

Create an element card that has the following information:

Shtirlitz [24]

Answer:

Atomic number:6

Atomic mass:12.011

Chemical symbol:C

Name of element: Carbon, Carbone (french)

Image is in my explanation

Explanation:

6 0

3 years ago

What is the IUPAC name

PolarNik [594]

Organic chemical compounds as recommended by the (IUPAC)

8 0

3 years ago