Answer:
there are 0.074 moles in 2.3 grams of phosphorus
Answer: (B) a strong acid
Explanation:
Acids turn blue pH paper red
Ideal gas law:
pv = nrt
nr is mole times the ideal gas constant, these are both held constant (do not change value)
pv/t = nr
Then you can set the conditions before = after
pv/t = PV/T
before: (convert to Kelvin)
(0.995)(5.27x10^4) / 305
After: (convert to Kelvin)
(0.720)V / 206.3
solve for V , volume after.
(0.995)(5.27x10^4) / 305 = (0.720)V / 206.3
4.926 x 10^4 L = V
The Leaves it's B because to maintain photosynthesis it must be reached through the Leaved
Answer:
a. 5.36x10⁻⁴ g/mL
b. 4.29x10⁻⁵ g/mL
Explanation:
As the units for concentration are not specified, I'll respond using g/mL.
a. We <em>divide the sample mass by the final volume</em> in order to <u>calculate the concentration</u>:
- 0.268 g / 500 mL = 5.36x10⁻⁴ g/mL
b. We can use C₁V₁=C₂V₂ for this question:
- 8.00 mL * 5.36x10⁻⁴ g/mL = C₂ * 100.00 mL