All categories

3 years ago

FeCl3 + NaOH → Fe(OH)3 + NaCl

Chemistry

1 answer:

Sunny_sXe [5.5K]3 years ago

7 0

Answer:

FeCl₃ + 3NaOH → Fe(OH)₃ + 3NaCl

Explanation:

You are given a skeleton equation, or unbalanced equation.

FeCl₃ + NaOH → Fe(OH)₃ + NaCl

Count the number of atoms on each side. If there is 1 atom, the subscript is not written. If the subscript to the right of a bracket, it belongs to each element in the bracket.

Reactants → Products

Fe 1 Fe 1

Cl 3 Cl 1 Not balanced

Na 1 Na 1

O 1 O 3 Not balanced

H 1 H 3 Not balanced

The number of each element must be the same in the reactants and products. We can see that Cl (chlorine), O (oxygen) and H (hydrogen) have different numbers.

Write in coefficients in front of formulas (separated by + sign). Coefficients multiply each subscript (or "1" if not written) in the formula. Recount the atoms until you have equal reactant and product atom numbers.

I see that I need more chlorine in my products. Multiply the formula that has "Cl" by 3.

FeCl₃ + NaOH → Fe(OH)₃ + 3NaCl

Reactants → Products

Fe 1 Fe 1

Cl 3 Cl 3 Cl is balanced now.

Na 1 Na 3 Not balanced

O 1 O 3 Not balanced

H 1 H 3 Not balanced

Fix the "Na" now. Multiply the formula with "Na" on the left by 3.

FeCl₃ + 3NaOH → Fe(OH)₃ + 3NaCl

Reactants → Products

Fe 1 Fe 1

Cl 3 Cl 3

Na 3 Na 3

O 3 O 3

H 3 H 3

Each side has the same number of each element. Therefore, this is balanced now.

Balanced formula:

FeCl₃ + 3NaOH → Fe(OH)₃ + 3NaCl

You might be interested in

Hydrogen monofluoride

Sindrei [870]

Answer:

what's the question man

Explanation:

3 0

3 years ago

What would happen if the amount of chlorofluorocarbons would suddenly increase and what would happen to the climate?

mario62 [17]

If CFC increases, there will be a ozone depletion ! the UV rays starts entering and leads to mutation and deaths !

the temperature of the climate increases drastically !

4 0

3 years ago

The density of iron is 7.8 g/cm3 and that of aluminum is 2.7 g/cm3. Using a balance, you find that a block of iron has the same

vazorg [7]

Answer:

1.The Aluminum block

2.its surroundings absorb energy from it.

Explanation:

In this question it is important to remember that density of an object is the mass of that object divided by its volume.

The expression applied here is density=mass/volume

Given that the mass is constant,lets say mass= m=1g

and density of aluminum=2.7g/cm³ and that of iron is 7.8 g/cm³ then volume=?

Volume=mass/density

Volume of aluminum= 1/2.7 =0.3704 cm³

Volume of iron = 1/7.8 =0.1282 cm³

Here we see volume of Aluminum block is the largest.

2.As water in an ice cube tray freezes, its surroundings absorb energy from it.When the water freezes, latent heat of freezing is given out to the surrounding.When water is freezing, it stays at a constant temperature of 0°C, the heat energy released ensures that there is no cooling past 0 °C.

8 0

3 years ago

Write a balanced chemical equation, including physical state symbols, for the combustion of gaseous butane into gaseous carbon d

Phantasy [73]

Answer:1.

1.Balanced equation

C4H10 + 9 02 ==> 5H20 +4CO2

2. Volume of CO2 =596L

Explanation:

1.Combustion of alkane is the reaction of alkanes with Oxygen. And the general equation for the combustion is;

CxHy +( x+y/4) O2 ==> y/2 02 + xCO2

Where x and y are number of carbon and hydrogen atoms respectively.

For butane (C4H10)

x=4 and y=10

Therefore

C4H10 + 9 02 ==> 5H20 +4CO2

2. Mass of butane = 0.360kg

Molar mass of C4H10 = ( 12×4 + 1×10)

= 48 +10=58g/mol= 0.058kg/mol

Mole = mass/molar mass

Mole = 0.360/0.058= 6.2moles

From the stoichiometric equation

1mole of C4H10 will gives 4moles of CO2

Therefore

6.2moles of C4H10 will gives 4 moles of 24.8 moles of CO2

Using the ideal gas equation

PV=nRT

P= 1.0atm

V=?

n= 24.8mol.

R=0.08206atmL/molK

T=20+273=293

V= 24.8 × 0.08206 × 293

V= 596L

Therefore the volume of CO2 produced is 596L

8 0

2 years ago

What type of wave travels quickly through solid, liquid, and gas?

jarptica [38.1K]

Answer: sound waves

Explanation: Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, faster through liquids, and fastest through solid

8 0

3 years ago

FeCl3 + NaOH → Fe(OH)3 + NaCl​

FeCl3 + NaOH → Fe(OH)3 + NaCl