All categories

3 years ago

How many moles of Carbon dioxide are produced when 4.5 mol of Boron carbonate decomposes completely?

Chemistry

1 answer:

balu736 [363]3 years ago

8 0

Answer:

n CO2 = 13.5 mol

Explanation:

balanced reaction:

B2(CO3)3 → B2O3 + 3CO2

∴ n B2(CO3)3 = 4.5 mol

⇒ n CO2 = (4.5 mol B2(CO3)3)*( 3 mol CO2 / mol B2(CO3)3 )

⇒ n CO2 = 13.5 mol

You might be interested in

Is the sky a solid,liquid,or gas

DochEvi [55]

The air in the sky and the clouds are gas, however some things in the sky [such as the sun/moon] are solid.
Hope that helped!

5 0

3 years ago

Feldspars producing clay is an example of ___

BaLLatris [955]

Answer: A

Explanation:

Hydrolysis reactions break down not only feldspars but many other silicate minerals as well, amphiboles, pyroxenes, micas, and olivines.

3 0

4 years ago

Scientific endeavor must be driven by the needs of society and not by simple curiosity. true false

vazorg [7]

False people can do whatever they want without people telling them what to do.

5 0

3 years ago

What are the concentrations of Cu2+, NH3, and Cu(NH3)42+ at equilibrium when 18.8 g of Cu(NO3)2 is added to 1.0 L of a 0.800 M s

Svetllana [295]

Answer:

Explanation:

Cu(NO₃)₂ + 4NH₃ = Cu(NH₃)₄²⁺ + 2 NO₃⁻

187.5 gm 4M 1 M

187.5 gm reacts with 4 M ammonia

18.8 g reacts with .4 M ammonia

ammonia remaining left after reaction

= .8 M - .4 M = .4 M .

187.5 gm reacts with 4 M ammonia to form 1 M Cu(NH₃)₄²⁺

18.8 g reacts with .4 M ammonia to form 0.1 M Cu(NH₃)₄²⁺

At equilibrium , the concentration of Cu²⁺ will be zero .

concentration of ammonia will be .4 M

concentration of Cu(NH₃)₄²⁺ formed will be 0.1 M

3 0

3 years ago

Elements in the same period have the same______. Every element in the first period has______ shell/orbital for its______. Every

vodomira [7]

Answer:

1. Number of shell

2. 1 shell

3. Atom

4. 2 shells

5. Atom

Explanation:

5 0

3 years ago