Answer:
26.33 g of NO.
Explanation:
We'll begin by writing the balanced equation to produce NO from H2O. This is given below:
5N2 + 6H2O —> 4NH3 + 6NO
Next, we shall determine the mass of H2O that reacted and the mass of NO produced from the balanced equation. This is illustrated below:
Molar mass of H2O = (2x1) + 16 = 18 g/mol
Mass of H2O from the balanced equation = 6 x 18 = 108 g
Molar mass of NO = 14 + 16 = 30 g/mol
Mass of NO from the balanced equation = 6 x 30 = 180 g
From the balanced equation above,
108 g of H2O reacted to produce 180 g of NO.
Finally, we shall determine the mass of NO produced by the reaction of 15.8 g of H2O.
This is illustrated below:
From the balanced equation above,
108 g of H2O reacted to produce 180 g of NO.
Therefore, 15.8 g of H2O will react to produce = (15.8 x 180)/108 = 26.33 g of NO.
Therefore, 26.33 g of NO were obtained from the reaction.
Answer:
2 atoms of carbon combine with 6 atoms of hydrogen to from ethane.
Solubility is a function of temperature. But for this case solubility is not given at that certain temperature and it is somewhat difficult to find for certain datas. I would be using the solubility at 20 degrees celsius which is <span>1.85g/100g </span>Water
.0185 g / g water = g barium hydroxide / 100 g
1.85 g of barium hydroxide can be dissolved in 100 g of water.
Hope this could help. Have a nice day.
Answer: There will be 41382 J energy must be absorbed by 45.0g of water to increase its temperature from 
to 
.
Explanation:
Given: Mass = 45.0 g
Initial temperature =
Final temperature =
Formula used to calculate heat energy is as follows.
where,
q = heat energy
m = mass of substance
C = specific heat = 
(here, for water)
= initial temperature
= final temperature
Substitute the values into above formula as follows.
Thus, we can conclude that there will be 41382 J energy must be absorbed by 45.0g of water to increase its temperature from to .
Answer:
6.31×10^-7M
Explanation:
pH= -log[H+]
6.2 = -log[H+]
[H+]= antilog(-6.2) = 6.31×10^-7M
