Answer:
0.098 moles
Explanation:
Let y represent the number of moles present
1 mole of Ba(OH)₂ contains 2 moles of OH- ions.
Hence, 0.049 moles of Ba(OH)2 contains y moles of OH- ions.
To get the y moles, we then do cross multiplication
1 mole * y mole = 2 moles * 0.049 mole
y mole = 2 * 0.049 / 1
y mole = 0.098 moles of OH- ions.
1 mole of OH- can neutralize 1 mole of H+
Therefore, 0.098 moles of HNO₃ are present.
Answer:
8 of the electrons will be valence electrons
Explanation:
Answer:9.18 m/s
Explanation:
The average speed for the entire trip is found ......total distance/total time. Remember r*t=d, so divide both sides by t and get r = d/t.
So the cyclist went 800+500+1200 m = 2500 m for total distance.
10t =800 leads to t=80 sec
5t=500 leads to t=100 sec
13t = 1200 leads to t = 92.3 sec
total time is 272.3 sec
Average speed for the entire trip is 2500 / 272.3 = 9.18 m/s
Answer:
Yes Calcium is more reactive than Lead.
Explanation:
Answer:
a) 213.3 mg/L
b) 62.61 mg/L
c) 0.0225 mg/L
Explanation:
Theoretical oxygen demand (ThOD)is essentially the amount of oxygen required for the complete degradation of a given compound into the final oxidized products
a) Given:
Concentration of acetic acid,![[CH3COOH]](https://tex.z-dn.net/?f=%5BCH3COOH%5D)
= 200 mg/L
Based on the reaction stoichiometry:
mass of 
= 60 g
mass of 
= 2(32) = 64 g
b) Given:
Concentration of ethanol, ![[C2H5OH]](https://tex.z-dn.net/?f=%5BC2H5OH%5D)
= 30 mg/L
Based on the reaction stoichiometry:
mass of 
= 46 g
mass of = 3(32) = 96 g
c) Given:
Concentration of sucrose, ![[C12H22O11]](https://tex.z-dn.net/?f=%5BC12H22O11%5D)
= 50 mg/L
Based on the reaction stoichiometry:
mass of 
= 342 g
mass of = 12(32) = 384 g
