basic = pH>7
A. pOH = 7 - log 3.31, pH = 14 - (7 - log 3.31) = 7 + log 3.31 (basic)
B. pH = 9 - log 8.17 = 8.09 (basic)
C. pH = 4 - log 5.91 (acid)
Answer:
D
Explanation:
single replacement....iron combined with tetraoxosulphate (VI)
No nucleus
eukaryotes are different from prokaryotes because they have a lot of organelles, including nucleus
Answer:
2 M Al³⁺(aq) and 6 M NO₃⁻(aq)
Explanation:
Al(NO₃)₃ is a strong electrolyte that ionizes according to the following equation.
Al(NO₃)₃(aq) → Al³⁺(aq) + 3 NO₃⁻(aq)
The solution 2.0 M contains 2.0 moles of Al(NO₃)₃ per liter of solution.
The molar ratio of Al(NO₃)₃ to Al³⁺ is 1:1. The concentration of Al³⁺ is:
2.0 mol Al(NO₃)₃/L × (1 mol Al³⁺/1 mol Al(NO₃)₃) = 2.0 mol Al³⁺/L = 2.0 M Al³⁺
The molar ratio of Al(NO₃)₃ to NO₃⁻ is 1:3. The concentration of NO₃⁻ is:
2.0 mol Al(NO₃)₃/L × (3 mol NO₃⁻/1 mol Al(NO₃)₃) = 6.0 mol NO₃⁻/L = 6.0 M NO₃⁻
Answer:
Be careful about when to use capital letters. For example, CO means a molecule of carbon monoxide but Co is the symbol for cobalt
Explanation: