Answer: 0.62 M
Explanation:
molarity = (moles of solute)/(liters of solution)
- If we approximate the atomic mass of Na to be 23 g/mol and the mass of Cl to be 35.5 g/mol, then the formula mass of NaCl is 58.5 g/mol.
- This means that 32 grams of NaCl is about 32/58.5 = 0.547 mol.
Hence, the molarity is (0.547)/(.88) = 0.62 M (to 2 s.f.)
Answer:
2k+2hcl---2kcl+h2
Explanation:
because we have to balance it and in order to balance it we have to make it in equal form
TRUE
common phenomenon for all unstable uranium atoms
q3 not sure maybe The atomic masses of elements X and Y will always equal the exact atomic mass of Z.
high temperatures
FALSE
<u>Answer:</u> The standard change in Gibbs free energy for the given reaction is 4.33 kJ/mol
<u>Explanation:</u>
For the given chemical equation:
The expression of for the given reaction:
We are given:
Putting values in above equation, we get:
To calculate the standard Gibbs free energy, we use the relation:
where,
= standard Gibbs free energy
R = Gas constant =
T = temperature =
= equilibrium constant in terms of partial pressure = 0.174
Putting values in above equation, we get:
Hence, the standard change in Gibbs free energy for the given reaction is 4.33 kJ/mol