To determine the number of grams of H2SO4 present in 0.25 mol of H2SO4, we need to use the molar mass of H2SO4 and the relationship between moles and grams.



The molar mass of H2SO4 can be calculated by adding up the atomic masses of its constituent elements. The atomic masses are found on the periodic table.

H2SO4 contains 2 hydrogen atoms (H), 1 sulfur atom (S), and 4 oxygen atoms (O). The atomic masses of these elements are approximately:
- Hydrogen (H): 1.01 g/mol
- Sulfur (S): 32.07 g/mol
- Oxygen (O): 16.00 g/mol

Therefore, the molar mass of H2SO4 can be calculated as follows:
(2 * 1.01 g/mol) + (1 * 32.07 g/mol) + (4 * 16.00 g/mol) = 98.09 g/mol

So, the molar mass of H2SO4 is 98.09 g/mol.



The mole-to-gram conversion formula is:
Number of grams = Number of moles * Molar mass

In this case, we want to find the number of grams of H2SO4, given that we have 0.25 mol of H2SO4.

Number of grams = 0.25 mol * 98.09 g/mol



Now, we can calculate the number of grams of H2SO4.

Number of grams = 0.25 mol * 98.09 g/mol = 24.52 g

Therefore, there are 24.52 grams of H2SO4 present in 0.25 mol of H2SO4.



To summarize, to find the number of grams of H2SO4 in 0.25 mol of H2SO4, we followed these steps:
1. Calculated the molar mass of H2SO4 by adding the atomic masses of hydrogen, sulfur, and oxygen.
2. Used the mole-to-gram conversion formula to find the number of grams, given the number of moles.
3. Calculated the result and determined that there are 24.52 grams of H2SO4 in 0.25 mol of H2SO4.

24.5