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soldier1979 [14.2K]
3 years ago
9

How many gram of fe in feno3​

Chemistry
2 answers:
Vesna [10]3 years ago
6 0

Answer:

800000

Explanation:

i think 800000 grams are in it.

cluponka [151]3 years ago
3 0

Answer:

55.845 grams

Explanation:

if there's no ( ) then there's only one Fe, and it's just the atomic weight.

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What is a kilogram??
sukhopar [10]

A kilogram is a measure of mass; 1,000 grams

8 0
3 years ago
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2. A sample of neon gas has a volume of 87.6 L at STP. How many moles are present?
PSYCHO15rus [73]

Answer:

                      3.91 moles of Neon

Explanation:

According to Avogadro's Law, same volume of any gas at standard temperature (273.15 K or O °C) and pressure (1 atm) will occupy same volume. And one mole of any Ideal gas occupies 22.4 dm³ (1 dm³ = 1 L).

Data Given:

                 n = moles = <u>???</u>

                 V = Volume = 87.6 L

Solution:

               As 22.4 L volume is occupied by one mole of gas then the 16.8 L of this gas will contain....

                          = ( 1 mole × 87.6 L) ÷ 22.4 L

                          = 3.91 moles

<h3>2nd Method:</h3>

                     Assuming that the gas is acting ideally, hence, applying ideal gas equation.

                              P V  =  n R T      ∴  R  =  0.08205 L⋅atm⋅K⁻¹⋅mol⁻¹

Solving for n,

                              n  =  P V / R T

Putting values,

                              n  =  (1 atm × 87.6 L)/(0.08205 L⋅atm⋅K⁻¹⋅mol⁻¹ × 273.15K)

                              n  =  3.91 moles

Result:

          87.6 L of Neon gas will contain 3.91 moles at standard temperature and pressure.

7 0
3 years ago
Why are animal vaccinated?
juin [17]

Answer:

to go against dangerous viral and bacteria

Explanation:

5 0
3 years ago
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Why is it that 85.48 rounded to two significant figures is 85 and not 86?
Gelneren [198K]

Answer:

See below.

Explanation:

That is because  of the .48.

85.48 is closer to 85 than 86.

8 0
3 years ago
Which of these phrases accurately describe disproportionation? Check all that apply.
Olin [163]

Answer:

A single compound is simultaneously oxidized and reduced.

Explanation:

In chemistry, disproportionation is a simultaneous oxidation and reduction of a single chemical specie.

What this means is that; in a disproportionation reaction, only one compound is both oxidized and reduced. This implies that two products are formed during disproportionation. One is the oxidized product while the other is the reduced product.

Consider the disproportionation of CuCl shown below;

2CuCl -----> CuCl2 + Cu

Here, CuCl2 is the oxidized product while Cu is the reduced product.

7 0
2 years ago
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