Answer:
3139542g
Explanation:
That's because if you talk about
4.5
moles of sodium fluoride, you would get a really absurd number of grams.
Answer:
B. Ba2+ and Mn (nevermind its not B)
Explanation:
Answer:
a small medical thermometer with a short but finely calibrated range, for taking a person's temperature.
Answer : The correct option is, (C) 1.7
Explanation :
First we have to calculate the moles of 
and 
.
The balanced chemical reaction will be:
0.01 mole of dissociate to give 0.01 mole of 
ion and 0.02 mole of 
ion
and
0.03 mole of dissociate to give 0.03 mole of 
ion and 0.03 mole of 
ion
That means,
0.02 moles of ion neutralize by 0.02 moles of ion.
The excess moles of ion = 0.03 - 0.02 = 0.01 mole
Total volume of solution = 100 + 300 = 400 ml = 0.4 L
Now we have to calculate the concentration of ion.
Now we have to calculate the pH of the solution.
![pH=-\log [H^+]](https://tex.z-dn.net/?f=pH%3D-%5Clog%20%5BH%5E%2B%5D)
Therefore, the pH of the solution is, 1.7
Answer:
20 gm CO2
Explanation:
CH10 mole weight = ~ 22 gm
each 22 gm CH10 produces 44 gm CO2
44 / 22 = x / 10 = 20 gm
