Final answer:
Without additional information regarding the compound's composition or the mole ratio in a reaction, it is impossible to accurately determine the mass of hydrogen in a 50 g sample of the compound.
Step-by-step explanation:
To determine the mass of hydrogen in grams present in a 50 g sample of a compound, you need to know the percentage composition of hydrogen in that compound or have additional information that relates to the mole ratio in a chemical reaction involving the compound. However, the question does not provide enough information about the compound or the context needed to calculate the mass of hydrogen from a 50 g sample of the compound. Therefore, based on the information provided, it is not possible to determine the exact mass of hydrogen in the sample. To find the mass of hydrogen, you would use the molar mass of hydrogen (2.0158 g/mol for H2) and the given mass of the sample to conduct dimensional analysis and find the mass proportion of hydrogen in that sample.