All categories

2 years ago

The reaction of fluorine with ammonia produces dinitrogen tetrafluoride and hydrogen fluoride.

1 answer:

4 0

5F2 + 2NH3 --> N2F4 + 6HF
60.1g NH3 / 17g/mole = 3.54moles NH3 
3.54moles NH3 x (5 F2 / 2NH3) x 38g/mole = 335.85g required 

5.25g HF / 20g/mole = 0.262moles HF 
0.262moles HF x (2NH3 / 6HF) x 17g/mole = 1.49g required 

209g / 38g/mole = 5.5moles F2 
5.5moles F2 (1 N2F4 / 5F2) x 66g/mole = 72.6g produced 

Li3N + 3H2O --> NH3 + 3LiOH 
(37.7g / 34.7g/mole) x (3H2O / 1 Li3N) x 18g/mole = 58.67g required 

1.08moles Li3N (1NH3 / 1Li3N) x 6.022x10^23molecules/mole = 6.54x10^23 molecules 

10.3L at STP: 10.3L / 22.4L/mole = 0.46moles NH3 produced 
0.46moles NH3 x (1Li3N / 1NH3) x 34.7g/mole = 15.96g

You might be interested in

Name the following bases.

zheka24 [161]

Answer:

Explanation:

Ferric Hydroxide

3. 1

Fe. (OH)

Fe(OH)3

6 0

2 years ago

A solution is made by dissolving 4.87 g of potassium nitrate in water to a final volume of 86.4 mL solution. What is the weight/

lara31 [8.8K]

Answer:

A solution is made by dissolving 4.87 g of potassium nitrate in water to a final volume of 86.4 mL solution. The weight/weight % or percent by mass of the solute is :

2.67%

Explanation:

Note : Look at the density of potassium nitrate in water if given in the question.

You are calculating weight /Volume not weight/weight % or percent by mass of the solute

Here the weight/weight % or percent by mass of the solute is asked : So first convert the VOLUME OF SOLUTION into MASS

Density of potassium nitrate in water KNO3 = 2.11 g/mL

$density=\frac{mass}{volume}$

Density = 2.11 g/mL

Volume of solution = 86.4 mL

$2.11=\frac{mass}{86.4}$

$mass = 2.11\times 86.4$

$mass=182.3grams$

Mass of Solute = 4.87 g

Mass of Solution = 183.2 g

w/w% of the solute =

$= \frac{mass\ of\ solute}{mass\ of\ solution}\times 100$

$=\frac{4.87}{183.2}\times 100$

w/w%=2.67%

8 0

3 years ago

Which species is the conjugate acid of the hemiacetal formed by reaction of benzaldehyde with methanol containing a trace of aci

fiasKO [112]

Answer:

Sulphuric acid is the on

Explanation:

think so

3 0

2 years ago

What was the half-life of a new isotope?

REY [17]

The half-life of any substance is the amount of time taken for half of the original quantity of the substance present to decay. The half-life of a radioactive substance is characteristic to itself, and it may be millions of years long or it may be just a few seconds.

In order to determine the half-life of a substance, we simply use:
t(1/2) = ln(2) / λ

Where λ is the decay constant for that specific isotope.

8 0

3 years ago

What behavior of light PROVES that it is a wave? Hint: will this ONLY happen because light is a wave, or could it also be true o

irina [24]

Answer:

Light changes speed in a glass of water.

Explanation:

8 0

2 years ago