HNO3+Ca(OH)2= Ca(NO3)2+H2O.Answer:
Explanation:hope this helps <3
Answer:
5.35×10²⁴ atoms of Li
Explanation:
To solve this we apply this rule of three:
We know that 1 mol contains 6.02×10²³ atoms
Therefore, 8.9 moles must contain (8.9 . 6.02×10²³) / 1 = 5.35×10²⁴ atoms
One mol is the amount of substance containing as many elemental entities as atoms, which are contained in 12 g of the C¹² isotope
In conclussion 6.02×10²³ atoms of C¹² isotope weighs 12 g
Answer:The Acid is dihydrogen phosphate (H2PO4-), H2O is the base, H3O+ is the conjugate acid, HPO42- is the conjugate base.
Explanation:
when dihydrogen phosphate (H2PO4-) ion reacts with water (H2O), it produces hydrogen phosphate ion (HPO42-) and hydroxonium ion (H3O+) following the reaction;
H2PO4- + H2O HPO42- + H3O+
According to Bronstead-lowry, an acid is a proton donor while a base is a proton receptor. The conjugate acid is the product after the base as accepted the proton while a conjugate base is the product after the acid has donated the proton.
The Acid is dihydrogen phosphate (H2PO4-) because it donates a proton to water which makes H2O the base.
H3O+ is the conjugate acid which is the product after the base accepted the proton while HPO42- is the conjugate base.
The answer is C. The water will boil at a higher temperature. This is because the solute is an impurity that raises the boiling point and lowers the melting point of water.
His measurements are precise since his pH values are close to each other in a way that it was repeated in all measurements. On the contrary to accuracy, it is the closeness to the actual pH value he should have achieved. Therefore, Jose's results are precise but not accurate since his value is not close to the actual value of pH 4.