if density = m(mass) / v(volume) then the answer would be 3
Answer:
see below
Explanation:
A. (1.8 X 10^20) X (2.5 X 10^16)
= 4.5 x 10³⁶
B.(7.9 X 10^9) - (6.0 X 10^8)
= 7.3 x 10⁹
C. (9.2 X 10^19) ÷ (3.0 X 10^7)
= 3.067 x 10¹²
D. (4.2 X 10^9) + (8.0 X 10^18)
= 8.00000002042 x 10¹⁸
Answer:
Explanation:
Hello,
In case, for the boiling point raise we can write:
Whereas T2 accounts for the boiling point of the solution which is 101.286 °C, T1 the volume of pure water which is 100.000 °C, i the van't Hoff factor that for this problem is 1 due to the solute's non-volatility, m the molality of the solute and Kb the boiling point constant that is 0.512 °C/m. In such a way, the change in the temperature is:
The molality is computed from the boiling point raise:
The moles are computed by multiplying the molality by the kilograms of water as the solvent (0.02002g):
And the molecular mass by dividing the mass of the solute by its moles:
Best regards.
Answer:
true
Explanation:
abiotic means nonliving and biotic means living