Answer:
A reduction potential measures the tendency of a molecule to be reduced by taking up new electrons. ... Standard reduction potentials can be useful in determining the directionality of a reaction. The reduction potential of a given species can be considered to be the negative of the oxidation potential.
Explanation:
Answer :I think it’s c
Hope this helps!
6.667 moles
Molar mass H3PO4 is 98 g/mol
mass of H3PO4 = 98 x 6.667 = 653.4g
mass of Cu = 27 , moles of Cu = 27 / 63.5 = 0.425
moles of Cr produce this Cu = .425 x 2/3 = 0.283 moles
or 0.283 x 52 = 14.7g
Answer:
We need 4.31 kg of acetylene
Explanation:
Step 1: Data given
Combustion of 1 mol acetylene releases 1251 kJ of heat
Molar mass of acetylene = 26.04 g/mol
Step 2: Calculate moles of acetylene
1251kJ /mol * x moles = 20.7 * 10^4 kJ
x moles = 20.7 * 10^4 kJ / 1251 kJ/mol
x moles = 165.47 moles
Step 3: Calculate mass of acetylene
Mass acetylene = moles acetylene * molar mass acetylene
Mass acetylene = 165.47 moles * 26.04 g/mol
Mass acetylene = 4308.8 grams = 4.31 kg of acetylene
We need 4.31 kg of acetylene
Answer:
Explanation:
Here, we want to convert J to cal
Mathematically:
Thus, to get our answer in cal, we divide the value given by 4.186
We have that as:
