1mol ------------ 3×6,02×10²³ oxygen atoms
x ------------ 2,55×10²⁴
x = 2,5×10²⁴ × 1mol / 3×6,02×10²³ ≈ 0,138*10 mol = 1,38mol
The answer is somewhat acidic
Answer:
float
Explanation:
density= mass/ volume (kg/m^3)
1.59 kg/0.197 m^3
=8.07 kg/m^3
density of H2O= 1000 kg/m3
since density(block)<density(H2O), the block will float
(can also be done in g/cm^3)
1590 g/ (1.97*10^5 cm3)= 0.00807 g/cm^3 < 1 g/cm^3 (h2O)
Answer:
The answer is D, for the test with
1 × 10-2 M
5 × 10-2 M
5 × 10-4 M
1 × 10-8 M
Explanation: