Why would one population of birds become two separate species?

The air bags in cars are inflated when a collision triggers the explosive, highly exothermic decomposition of sodium azide (NaN3

Oksanka [162]

Answer : The mass of $NaN_3$ required is, 166.4 grams.

Explanation :

First we have to calculate the moles of nitrogen gas.

Using ideal gas equation:

$PV=nRT$

where,

P = Pressure of $N_2$ gas = 1.00 atm

V = Volume of $N_2$ gas = 113 L

n = number of moles $N_2$ = ?

R = Gas constant = $0.0821L.atm/mol.K$

T = Temperature of $N_2$ gas = $85^oC=273+85=358K$

Putting values in above equation, we get:

$1.00atm\times 113L=n\times (0.0821L.atm/mol.K)\times 358K$

$n=3.84mol$

Now we have to calculate the moles of sodium azide.

The balanced chemical reaction is,

$2NaN_3(s)\rightarrow 2Na(s)+3N_2(g)$

From the balanced reaction we conclude that

As, 3 mole of $N_2$ produced from 2 mole of $NaN_3$

So, 3.84 moles of $N_2$ produced from $\frac{2}{3}\times 3.84=2.56$ moles of $NaN_3$

Now we have to calculate the mass of $NaN_3$

$\text{ Mass of }NaN_3=\text{ Moles of }NaN_3\times \text{ Molar mass of }NaN_3$

Molar mass of $NaN_3$ = 65 g/mole

$\text{ Mass of }NaN_3=(2.56moles)\times (65g/mole)=166.4g$

Therefore, the mass of $NaN_3$ required is, 166.4 grams.

3 0

3 years ago

How much voltage is required to run 1.6 A of current through a 240

pentagon [3]

Answer:

answer is not there

Explanation:

V=1.6×240

V=384volt

6 0

2 years ago

A gas is at 5 Kelvin and 1 m3. The temperature is raised to 10 Kelvin. What is the new volume?2 m32 m5 m

Alja [10]

For this question, suppose the pressure is remained constant, we can use the Charles law to find the answer.

Charles law:

V1/T1 = V2/T2

V1 and T1 are the initial volume and temperature (in K), and V2 and T2 are the final volume and temperature.

We just need to substitute in the numbers in order to find the new volume, V2.

1/5 = V2/10

5V2 = 10

V2 = 2

Therefore, the answer would be 2m3.

5 0

3 years ago

What's Heavier?<br> 100 pounds of bricks?<br> 100 pounds of Feathers? <br><br> (THINK WISELY)

Anvisha [2.4K]

They have same mass

Explanation:

If you think wisely 100 pounds and 100 pounds have the same weight so the answer is equal

5 0

1 year ago

A 13.58 g sample of a compound contains 8.67 g of iron, Fe, 1.60 g of phosphorus, P, and oxygen, O. Calculate the empirical

antiseptic1488 [7]

Answer:

$Fe_3PO_4$

Explanation:

To do this, we find the moles of each element. We get around 0.155 moles of Fe, 0.051 moles of P, and 0.206 moles of O. We then divide each one by the smallest one (which is 0.051 moles of P). We then get 3 for Fe, 1 for P, and 4 for O. This correlates to the empirical formula of the compound.

6 0

3 years ago