What they have in common is that they both have the same number of atoms.
Answer: H₂O is just water
Explanation:
Answer:
the osmolarity of the 0.85% NaCl solution is approximately equal to 300 mosmol/L.
Explanation:
Molarity= number of moles/volume of the solution in liters
volume of the solution= 100 mL
1 L= 1000 mL
100 mL= 100/1000=0.1 L
molar mass of NaCl= 58.44 g/mol
number of moles= mass in gram/gram molecular mass
= 0.85/58.44
= 0.01455
molarity= number of moles/volume of the solution in liters
= 0.01455 / 0.1
= 0.1455 M
1 M= 1000 mM
so 0.1455 M = 0.1455 × 1000
= 145.5 mM
Osmolarity is the concentration of solutes in the solution.
NaCl dissociates to Na+ and Cl-
so osmolarity of 145.5 mM NaCl= 2 × 145.5
= 291 mosmol/L
Therefore, we conclude that the osmolarity of the 0.85% NaCl solution is approximately equal to 300 mosmol/L.
<span>In a cup of salt water, the solvent is water and the solute is the salt. When the two mixed they form a solution. The solvent is what dissolves the solute. It has the largest composition in a solution. The solute has a smaller composition in a solution and it is usually in solid form.</span>
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.