Answer:
If 13.4 grams of nitrogen gas reacts we'll produce 16.3 grams of ammonia
Explanation:
Step 1: Data given
Mass of nitrogen gas (N2) = 13.4 grams
Molar mass of N2 = 28 g/mol
Molar mass of NH3 = 17.03 g/mol
Step 2: The balanced equation
N2 + 3H2 → 2NH3
Step 3: Calculate moles of N2
Moles N2 = Mass N2 / molar mass N2
Moles N2 = 13.4 grams / 28.00 g/mol
Moles N2 = 0.479 moles
Step 4: Calculate moles of NH3
For 1 mol N2 we need 3 moles H2 to produce 2 moles NH3
For 0.479 moles N2 we'll produce 2*0.479 = 0.958 moles
Step 5: Calculate mass of NH3
Mass of NH3 = moles NH3 * molar mass NH3
Mass NH3 = 0.958 moles * 17.03 g/mol
Mass NH3 = 16.3 grams
If 13.4 grams of nitrogen gas reacts we'll produce 16.3 grams of ammonia
Answer: The coefficients for the given reaction species are 1, 6, 2, 3.
Explanation:
The given reaction equation is as follows.
![Cr_{2}O^{2-}_{7} + Cl^{-} \rightarrow Cr^{3+} + Cl_{2}](https://tex.z-dn.net/?f=Cr_%7B2%7DO%5E%7B2-%7D_%7B7%7D%20%2B%20Cl%5E%7B-%7D%20%5Crightarrow%20Cr%5E%7B3%2B%7D%20%2B%20Cl_%7B2%7D)
Now, the two half-reactions can be written as follows.
Reduction half-reaction: ![Cr_{2}O^{2-}_{7} + 3e^{-} \rightarrow Cr^{3+}](https://tex.z-dn.net/?f=Cr_%7B2%7DO%5E%7B2-%7D_%7B7%7D%20%2B%203e%5E%7B-%7D%20%5Crightarrow%20Cr%5E%7B3%2B%7D)
This will be balanced as follows.
... (1)
Oxidation half-reaction: ![Cl^{-} \rightarrow Cl_{2} + 1e^{-}](https://tex.z-dn.net/?f=Cl%5E%7B-%7D%20%5Crightarrow%20Cl_%7B2%7D%20%2B%201e%5E%7B-%7D)
This will be balanced as follows.
... (2)
Adding both equation (1) and (2) we will get the resulting equation as follows.
![Cr_{2}O^{2-}_{7} + 14H^{+} + 6Cl^{-} \rightarrow 2Cr^{3+} + 3Cl_{2} + 7H_{2}O](https://tex.z-dn.net/?f=Cr_%7B2%7DO%5E%7B2-%7D_%7B7%7D%20%2B%2014H%5E%7B%2B%7D%20%2B%206Cl%5E%7B-%7D%20%5Crightarrow%202Cr%5E%7B3%2B%7D%20%2B%203Cl_%7B2%7D%20%2B%207H_%7B2%7DO)
Thus, we can conclude that coefficients for the given reaction species are 1, 6, 2, 3.
Answer:
3.2 × 10⁻⁸
Explanation:
Let's consider the solution of magnesium carbonate.
MgCO₃ ⇄ Mg²⁺(aq) + CO₃²⁻(aq)
We can relate the molar solubility (S) with the solubility product (Ksp) using an ICE chart.
MgCO₃ ⇄ Mg²⁺(aq) + CO₃²⁻(aq)
I 0 0
C +S +S
E S S
The Ksp is:
Ksp = [Mg²⁺] × [CO₃²⁻] = S × S = S² = (1.8 × 10⁻⁴)² = 3.2 × 10⁻⁸
The answer is B mark me as Brainliest while your at it