1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ronch [10]
3 years ago
6

If 638.44g CuSO4 reacts with 240.0g NaOH, which is the limiting reactant?

Chemistry
2 answers:
Cloud [144]3 years ago
4 0
CuSO₄ + 2NaOH → Cu(OH)₂ + Na₂SO₄

M(CuSO₄)=159.61 g/mol
m(CuSO₄)=638.44 g
n(CuSO₄)=m(CuSO₄)/M(CuSO₄)
n(CuSO₄)=638.44/159.61= 4.00 mol

M(NaOH)=40.00 g/mol
m(NaOH)=240.0 g
n(NaOH)=m(NaOH)/M(NaOH)
n(NaOH)=240.0/40.00= 6.00 mol

on the reaction equation
CuSO₄ : NaOH = 1 : 2

in practice
CuSO₄ : NaOH = 4 : 6 = 1 : 1.5 ⇒ NaOH is the limiting reactant
Blizzard [7]3 years ago
3 0

Answer:

NaOH is the limiting reactant

Explanation:

Considering the chemiacl reaction :

CuSO₄ + 2NaOH → Cu(OH)₂ + Na₂SO₄

Molar Mass CuSO₄ = 159 g/mol

Molar mass NaOH = 40 g/mol

Due to stoichiometry :

159 g CuSO₄ = 80 g NaOH

Then: 638.44 g CuSO₄ should react with 321.23 g NaOH, but we have 240.o g of NaOH, so this last is the limiting reactant

You might be interested in
Magbigay ng 3 halimbawa ng lipunang sibil. Paki sagot ng wasto plies >_<​
Sliva [168]

Answer:

i not anther stand your bla bla bla

6 0
3 years ago
Which formula represents a polar molecule
krek1111 [17]

Answer:

the formula that represents a polar molecule is NH3 the 3 is small and toward the bottom

8 0
3 years ago
An ideal gas contained in a piston which is compressed. The gas is insulated so that no heat flows into or out of it. 1) What ha
Goryan [66]

Answer:Temperature increases

Explanation: As the gas in the container is an ideal gas so it should follow the ideal gas equation, the equation of state.

We know ideal gas equation to be PV=nRT where

   P=pressure

   V=Volume

   T=Temperature

   R=Real gas constant

   n=Number of moles

since the gas is insulated such that no heat goes into or out of the system .

When we compress the ideal gas using a piston, Thermodynamically it means that work is done on the system by the surroundings.

Now as the ideal gas is been compressed so the volume of the gas would decrease and slowly a time will reach when no more gas can be compressed that is there cannot be any further decrease in volume of the gas.

From the equation PV=nRT

Once there is no further compression is possible hence volume becomes constant so pressure of the ideal gas becomes directly proportional to the temperature as n and R are constants. Also as the pressure and volume are inversely related so an decrease in volume would lead to an increase in pressure.

As the ideal  gas is compressed so the pressure of the gas would increase since the gas molecules have smaller volume available after compression hence the gas molecules would quite frequently have collisions with other gas molecules or piston and this collision would lead to increase in speed of the gas molecules and  so the pressure would increase .

The increase in pressure would lead to an increase in temperature as show by the above ideal gas equation because the pressure and temperature are directly related.

So here we can say that work done on the system by surroundings leads to increase in temperature of the system.

5 0
3 years ago
Cuántos electrones de Valencia tiene Ga
Zinaida [17]
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p1

Primero realizas la configuración electrónica que es la que te puse allá arriba.

Después miras el nivel en que termina, puede ser 1, 2, 3, 4 etc.

Entonces como el último número de la configuración electrónica es 4, entonces ese es el nivel

Y los electrones de el último nivel son los de Valencia

4s2, 4p1 sumas 2+1 que son los electrones que se encuentran en el último nivel.

por eso hay 3 electrones de valencia.
4 0
3 years ago
What are even covalent chlorides? Question D
liq [111]

Answer:

The chlorine atom (or atoms) is covalently bonded by a shared pair of electrons to the other element.

Explanation:

4 0
3 years ago
Other questions:
  • which of these releases heat a. melting candle wax b.boiling water to make stem c. burning wood in a campfire d. making popcorn
    13·1 answer
  • According to the periodic table, which two elements are in the same row? A. copper and gold B. sodium and sulfur C. lithium and
    15·1 answer
  • Why can sand stop fire?
    5·2 answers
  • Titanium metal requires a photon with a minimum energy of 6.94×10⁻¹⁹J to emit electrons. What is the wavelength of this light? E
    6·1 answer
  • a piece of metal is heated to 100℃ and placed into 75.0g of water in a coffee-cup calorimeter. Initially, the temperature of the
    12·1 answer
  • Students in a robotics class designed cars to race as their end of the year project. Students collected data on their cars and c
    11·1 answer
  • (picture is a pic of cute colorful birds c: ) Suppose that you and a friend see brightly colored pigeons like these at a nature
    10·2 answers
  • The boiling point of a substance is affected by
    9·2 answers
  • In the reaction, HCl + NaOH NaCl + H₂O, what is/are the reactant(s)?
    9·1 answer
  • Write the name of the alkane next to the drawing of the molecule.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!