8N
To find the moles of H2SO4 in a 20 ml of 4M solution, use the formula: Moles = Molarity x Volume (in liters). First, convert 20 ml to liters (20 ml = 0.02 L). Then, multiply the molarity (4 mol/L) by the volume (0.02 L) to find the moles of H2SO4, which is 0.08 moles.
To make a 4M solution in 20 ml, you would need 0.32 grams of LiCl. This can be calculated using the formula: moles = molarity x volume (in L), then converting moles to grams using the molar mass of LiCl.
The pH of the solution can be calculated using the formula: pH = -log[H3O+]. Substituting the given value of [H3O+] = 2 x 10^-4M into the formula, pH = -log(2 x 10^-4) = 3.7. Therefore, the pH of the solution is 3.7.
1 x 10^-4
- log(0.00450 M HCl)= 2.3 pH=======
To find the moles of H2SO4 in a 20 ml of 4M solution, use the formula: Moles = Molarity x Volume (in liters). First, convert 20 ml to liters (20 ml = 0.02 L). Then, multiply the molarity (4 mol/L) by the volume (0.02 L) to find the moles of H2SO4, which is 0.08 moles.
The molarity can be calculated by first converting grams of sodium hydroxide to moles, then dividing by the volume of the solution in liters. In this case, the molar mass of NaOH is 40 g/mol. So, 80g is 2 moles. With a volume of 0.5 L, the molarity is 2 moles / 0.500 L = 4 M.
4m
The area of 4m by 4m is 16 square meters.
4m = 13.12 feet
To make a 4M solution in 20 ml, you would need 0.32 grams of LiCl. This can be calculated using the formula: moles = molarity x volume (in L), then converting moles to grams using the molar mass of LiCl.
-4m + 3 = -8 -4m = -8 -3 -4m = -11 4m = 11 m = 2.75
V = 64 m3
4m
2816-4m = 2812
4m-224 = -220
4m