Answer:
pH probe
Explanation:
A pH probe is the most accurate and consistent way of measuring pH. While pH paper and an indicator solution is viable, the most precise way would be to use a pH probe or meter
It is likely to receive one electron from another element's atom during the creation of a bond, based on the electron configuration. The arrangement of electrons in energy levels surrounding an atomic nucleus is termed electronic configuration, or electronic structure.
Fluorine's electron configuration is
Because fluorine contains seven valence electrons, it is most likely to acquire one to create a 1-charged ion. To complete its octet, it will require one more electron. As a result, the oxidation number is 1, indicating that when fluorine interacts with another atom to form a more stable combination, it will acquire or share one electron. As a result, it is likely to acquire one electron from an atom of another element during the creation of a bond, based on the electron configuration.
Answer:
Molar concentration of HCl = 0.279 M
Explanation:
Given data:
Volume of NaOH = 31.00 mL ( 31/1000 = 0.031 L)
Molarity of NaOH = 0.0900 M
Volume of HCl = 10.00 mL (0.01 L)
Molar concentration of HCl = ?
Solution:
Chemical equation:
NaOH + HCl → NaCl + H₂O
Number of moles of NaOH:
Number of moles = Molarity × volume in L
Number of moles = 0.0900 mol/L × 0.031 L
Number of moles = 0.00279 mol
For one mole of HCl one mole of NaOH is required.
Number of moles of HCl = 0.00279 mol
Molar concentration of HCl = 0.00279 mol / 0.01 L
Molar concentration of HCl = 0.279 M
Answer:
a
Explanation:
It increases the reaction rate by lowering the activation energy for a reaction
4) definite shape and definite volume