Answer:
278 mL x 0.038 M = 10,564 mmol.
Using the molair mass of Fe2(SO4)3 to convert mmol to grams:
10,564 mmol / 1000 x 399,88 g/mol = 4,22 g Fe2(SO4)3.
Answer:
sharing of electron
Explanation:
As seen in carbon. carbon has four electrons in his outermost shell and needs for electron by sharing of electrons it can gain it by another carbon
Answer is: the hydronium ion concentratio is 1.71×10⁻⁷ mol/dm³ and pH<6.76.
The Kw (the ionization constant of water) at 40°C is 2.94×10⁻¹⁴ mol²/dm⁶ or 2.94×10⁻¹⁴ M².
Kw = [H₃O⁺] · [OH⁻].
[H₃O⁺] = [OH⁻] = x.
Kw = x².
x = √Kw.
x = √2.94×10⁻¹⁴ M².
x = [H₃O⁺] = 1.71×10⁻⁷ M; concentration of hydronium ion.
pH = -log[H₃O⁺].
pH = -log(1.71×10⁻⁷ M).
pH = 6.76.
pH (potential of hydrogen) is a numeric scale used to specify the acidity or basicity an aqueous solution.
Answer:
Problem 1 = 25.0 ml
Problem 2 = Increase in temperature
Problem 3 = 2,52 atm
Problem 4 =
Problem 5 = true
Problem 6 =
Explanation:
1) v2 = v1P1/P2 = (50 x 20)/40 = 25.0 ml
2.- An increase in temperature because there is a direct relationship among pressure and temperature.
3.- P2 = P1T2/T1 = (2.8 x 360) / 400 = 1008/400 = 2,52 atm
4.- 7.5 L
5.- True
6.- Boyle's law C) Pressure and volume
Charles's law A) Temperature and volume
Gay-Lussac's law B) Pressure and temperature