Answer:
To determine the number of moles of H2 in 10 g of H2, we need to use the molar mass of hydrogen (H2). The molar mass of hydrogen is approximately 2 grams per mole. To calculate the number of moles, we can use the formula: moles = mass / molar mass In this case, the mass of H2 is given as 10 g. Plugging this into the formula, we get: moles = 10 g / 2 g/mol Simplifying, we find that there are 5 moles of H2 in 10 g of H2. Therefore, 10 g of H2 is equal to 5 moles of H2.
Step-by-step explanation: