Answer:
B
Explanation:
Use the molar mass of H2SO4 to get moles of H2SO4; 51.2g/98.079g=0.522
Divide 500 mL by 1000 to get L
Molarity = moles of solute/L of solution; so divide the moles by 0.5L
Answer:+3
The oxidation state of Fe is +3 as well. The oxidation state is O of −2. The sum of the oxidation states must be equal to zero.
Explanation:I’m sry if you don’t understand I had searched it up I don’t understand either maybe try to copy and paste it id k or watch these yet vids there they can help I think
Answer:
51.7 mL
Explanation:
Data Given
initial volume V1 = 50 mL
final Volume V2 = ?
initial Temperature T1 = 25° C
convert Temperature to Kelvin
T1 = 25° C + 273 = 298K
final Temperature T2 = 35° C
convert Temperature to Kelvin
T2 = 35° C + 273 = 298K
Solution:
The formula used
V1 / T1 = V2 / T2
As we have to find out volume, so rearrange the above equation
V2 = V1 x T2 / T1
Put value in above equation
V2 = 50 mL x 308K / 298K
V2 = 51.7 mL
So the final volume of Nitrogen = 51.7 mL
A) energy
100% Sure
Hope this helped you
