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4 years ago

Automobile airbags inflate due to the formation of nitrogen gas from the chemical reaction

Chemistry

1 answer:

s344n2d4d5 [400]4 years ago

6 0

Answer:

Two mole of sodium azide will produce three mole of nitrogen gas and two mole of sodium.

Explanation:

Sodium azide when heated it converted into the dinitrogen and sodium.

Sodium is produced in the solid form while dinitrogen produce in gaseous form. The chemical reaction is given below:

Chemical equation:

NaN3 + heat → N₂ + Na

Balance chemical equation:

2NaN3(s) + heat → 3N₂(g) + 2Na(s)

Two mole of sodium azide will produce three mole of nitrogen gas and two mole of sodium.

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Where are people mostly exposed to chemicals?

Vlad [161]

Answer:

people are mostly exposed to chemicals through their nose, mouth, eyes, and ears

Explanation:

they are the easiest way for anything, bad or good, to enter the body because people touch their face alot.

This might not answer what you were looking for but the other answer covered it pretty well so I thought I'd give you another angle to the question!

Hope this helps!!

4 0

3 years ago

Penicillin is hydrolyzed and thereby rendered inactive by penicillinase, an enzyme present in some resistant bacteria. The mass

Arisa [49]

Answer:

The turnover number is the maximum substrate quantitiy converted to product per enzyme and per second. It can be calculate as follows:

$k_c = \frac{V_{max}}{[E]}$ with $[E]$ active enzyme concentration.

In this case we have Vmax an data to calculate $[E]$

$moles of E=\frac{10^{-9}g}{29600 g/mol}=3.38*10^{-14}$

$[E]=\frac{3.38*10^{-14}}{0.01 L}=3.38*10^{-12} M$

Now $k_c=\frac{6.8*10^-10}{3.38*10^{-12}}=201.28 min^{-1}$

it is not like any option.

If we assume that $V_{max}$ have the non usual units of $mol L^{-1} min^{-1}$ and it is $6.8*10^-10 mol min^{-1}$

So we need divide by the moles of E (in place of [E])

Now $k_c=\frac{6.8*10^-10}{3.38*10^{-14}}=20128 min^{-1} = 335 s{-1}$

(pass from $min^{-1}$ to $s^{-1}$ dividing by 60)

4 0

3 years ago

The medicinal thermometer commonly used in homes can be read to Â±0.1Â°F, whereas those in the doctor's office may be accurate t

andrezito [222]

Answer:

the percent error expected from each of theses person's body:

in homes:

% E = 0.14267 %

in doctor's office:

% E = 0.257 %

Explanation:

° C = ( ° F - 32 ) * (5/9)
% E = ( | true - exp | / true ) * 100
body temp = 38.9 ° C = 102.02 ° F

thermometer used in homes:

⇒ T = 102.02 ° F +/- 0.1 ° F = 102.12 ° F ∧ 101,92 ° F

⇒ T = 102.12 ° F = 38.9555 ° C

⇒ % E = ( | 38.9 - 38.9555 | ) / 38.9 ) * 100 = 0.14267 %

in the doctor's oficce:

⇒ T = 38.9 ° C +/- 0.1 ° C = 39 ° C ∧ 38.8 ° C

⇒ % E = (( | 39 - 38.9 | ) / 38.9 ) * 100 = 0.257 %

8 0

3 years ago

How many moles are in 0.50 g sodium bromide

Fiesta28 [93]

Use stoichometry to calculate this. In order to calculate this answer, you need to divide the grams by the molar mass of sodium bromide. The molar mass of sodium bromide is approximately 103 g/mol. 0.50/103 equates to about 0.00485 moles of sodium bromide.

6 0

2 years ago

When hydrogen is burned as a fuel, the primary waste product produced is ________?

lora16 [44]

2H2 +O2 ----> H2O
The primary product is water.

3 0

3 years ago

Read 2 more answers