Chemistry
A is a solution of H2SO4 containing 2.5g in 500cm3
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You don't have a question. Probably you want the molarity.
M = mols/L.
Find mols = grams H2SO4/molar mass H2SO4 = ?
Substitute mols and L (0.500L) and calculate M.
To find the concentration of the sulfuric acid solution (H2SO4), we need to calculate the number of moles present in the solution.
Step 1: Calculate the molar mass of H2SO4.
The molar mass of H2SO4 can be calculated by adding up the atomic masses of its constituent elements:
H = 1.008 g/mol × 2 = 2.016 g/mol
S = 32.06 g/mol
O = 16.00 g/mol × 4 = 64.00 g/mol
Total molar mass of H2SO4 = 2.016 + 32.06 + 64.00 = 98.076 g/mol
Step 2: Convert grams to moles.
To convert grams of H2SO4 to moles, divide the given mass by the molar mass:
Number of moles = Mass / Molar mass
Number of moles = 2.5 g / 98.076 g/mol = 0.0255 mol
Step 3: Calculate the concentration.
Concentration is typically expressed in moles per liter (mol/L) or molarity (M). Since the provided volume is in cm3, we need to convert it to liters (L):
1 L = 1000 cm3
Volume in liters = 500 cm3 / 1000 = 0.5 L
Concentration (M) = Number of moles / Volume in liters
Concentration (M) = 0.0255 mol / 0.5 L = 0.051 M
Therefore, the concentration of the sulfuric acid solution (H2SO4) is 0.051 M.