You have 3 (h2(so4)) on the reactants side so you need to have 6 total hydrogen’s on the products side. Therefore 3(h2) is required.
Answer:
Nocturnal animals, such as owls, tend to have wide pupils and several rod cells in their retina because wide pupil allow more light to enter the eyes and the rods cells in the retina are sensitive to dim light and are vital for night vision.
Hydrochloric acid ionisation is as follows;
HCl ---> H⁺ + Cl⁻
HCl is a strong base so there's complete dissociation of acid to H⁺ ions
The number of HCl moles is equivalent to number of H⁺ ions present
1 L of solution contains - 11.6 moles of H⁺ ions
In 35 ml number of moles - 11.6 mol/L / 1000 ml x 35 ml = 0.406 mol
This number of moles are dissolved in 500 ml
therefore molarity = 0.406 mol /500 ml x 1000 ml = 0.812 M
B. Erosion, weathering, and deposition
Answer:-
241.66 mL
Explanation:-
Volume of HCl = 145 mL / 1000 = 0.145 L
Strength of HCl = 0.25 M
Number of moles of HCl = Strength x volume
= 0.25 M x 0.145 L
= 0.03625 moles
According to the balanced chemical equation
NaOH(aq) + HCl(aq) → H 2 O(l) + NaCl(aq)
1 mol of HCl reacts with 1 mol of NaOH.
∴0.03625 moles of HCl reacts with 0.03625 moles of NaOH.
Strength of NaOH = 0.15 M
Volume of NaOH = Number of moles / strength
= 0.03625 moles / 0.15 M
= 0.24166 L x 1000
= 241.66 mL
