Answer:
223 g
Explanation:
Molar mass Fe = 55.845 g/mol
mass=molar mass* number of moles=55.845*4.00≈223 g
Answer:
yo it's the summer I didn't expect to see this
Explanation:
sorry I dont have the answer
Answer: 64.71 L. The balloon will have expanded.
Explanation: 1st, sea level is equal to 1 atm. You will then use Boyle’s Law: P1V1=P2V2.
P1= 1 atm
V1= 55 L
P2= 0.85 atm
V2= ?
Now insert the numbers for the letters:
(1)(55)=(0.85)(V2)
55=0.85V2
Divide by 0.85 on both sides:
V2=64.71L
Now, according to Boyle’s Law, when pressure decreases, volume increases. That’s why the balloon inflates rather than deflates.
Answer:
The weight/weight % or percent by mass of the solute is 1.04g.mL
Explanation:
We assume, (i) that the solvent is water, and (ii) that dissolution occurs without change in volume.
So given the standard density of water, the mass of the solution is simply,
(4.87+86.4)g
For solution,
=
= 1.04 g. mL
Because nitrate salts are soluble stuff, you could get significantly higher solution densities if you dissolved more salt (volume change would be fairly negligible).