Answer:
[H+] is 3.31 × 10^-11 M
Solution: Basic
Explanation:
In the question we are given;
Concentration of Hydroxide ion [OH-] as 3.0 × 10^-4 M
We are required to determine the [H+] and whether the solution is acidic, basic or neutral.
We know that;
pOH + pH = 14
and that;
pOH = - log [OH-]
Therefore;
pOH = - log ( 3.0 × 10^-4)
= 3.52
But;
pH = 14 - pOH
Thus;
pH = 14 - 3.52
= 10.48
But, we know that;
pH = - log[H+]
Therefore;
H+ = Antilog -pH
= Antilog -10.48
= 3.31 × 10^-11
Thus, the concentration of H+ ions [H+] is 3.31 × 10^-11 M
Also since the pH is 10.48, then the solution is basic
Answer:
Because isotopes of the same element only differ by a few neutrons. An example is carbon-12 and carbon-14 isotopes which differ by 2 neutrons in their atomic nuclei.
Explanation:
Isotopes of the same element share the same chemical properties because they bear the same number of electrons (remember electrons are what are involved in chemical reactions). Therefore one can't use chemical methods to separate isotopes.
Separating isotopes require mechanical separation using ultra-high-speed centrifuges with very high-resolution power such that the little mass difference between the isotopes (due to differences in neutron numbers) can be used to separate them.
Learn More:
For more on isotopes check out;
brainly.com/question/13187634
brainly.com/question/364529
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Answer: 1.80g
Explanation:
Molar Mass of AlCl3 = 27 + (3x35.5)
= 27 + 106.5 = 133.5g/mol
Number of mole of AlCl3 = 0.0135mol
Mass = 0.0135 x 133.5= 1.80g
Answer:
In context|chemistry|lang=en terms the difference between halogen and halide. is that halogen is (chemistry) any element of group 7, ie fluorine, chlorine, bromine, iodine and astatine, which form a salt by direct union with a metal while halide is (chemistry) a salt of any halogen acid.
Explanation:
Compound is a pure substance where atoms of two or more elements are chemically bonded togather
