Chemistry, 07.12.2019 19:31 kealinwiley

If all the n2 and h2 are consumed, what volume of nh3, at the same temperature and pressure, will be produced? at a certain temperature and pressure, 1.9 l of n2 reacts with 5.7 l of h2.

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Answer from: Katyazamo

3.8L of $NH_{3}$

Explanation:

First let's write the balanced equation for the reaction :

$N_{2}(g)+3H_{2}(g)$ ⇒ $2NH_{3}(g)$

By analyzing the coefficients of the reaction we find that the relationship between the compounds is 1:3:2 (I)

This means that for example with 1 mole of $N_{2}$ and with 3 moles of $H_{2}$ we will obtain 2 moles of $NH_{3}$

1 mole of gas at STP (Standard Temperature and Pressure) has a volume of 22.4 L

The moles and the volume in liters vary directly therefore we can work with the volume and the relationship (I)

If we divide the volume of $H_{2}$ and $N_{2}$ we obtain :

$\frac{5.7L}{1.9L}=3$ (II)

The number in (II) satisfies the relationship (I) so we can write in terms of liters that :

With 1.9L of $N_{2}$ and 5.7L of $H_{2}$ (three times more liters that $N_{2}$ ) we will produce (1.9L).2=3.8L of NH{3} (two times more liters that $N_{2}$ ) satisfying the relationship (I)

Answer from: Quest

answer: e. sour taste

explanation: acids are those substances which dissociates in water to give $h^+$ ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

$hcl\rightarrow h^++cl^-$

bases are those substances which dissociates in water to give $oh^-$ ions or accepts $h^+$ ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

$naoh\rightarrow na^++oh^-$

$nh_3+h^+\rightarrow nh_4^+$

Answer from: Quest

the balanced equation for reaction of ca metal with o2 to produce cao is as below

2 ca+ o2→ 2 cao2

explanation

the reaction is balanced since the number of atoms in reactant side is equal to number of atoms in product side. for example they are 2 atom of ca in reactant side and 2 atoms of ca in the product side.

the process is a meet the requirement of redox reaction because : calcium is oxidized from oxidation state 0 to 2+ while oxygen is reduced from oxidation state 0 to 2-

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