Final answer:
To calculate the mass of hydrogen gas from given amounts of strontium hydride and water, the balanced chemical reaction is needed to determine the stoichiometry of the reaction. Without this information, we cannot provide an accurate answer.
Step-by-step explanation:
To calculate the mass of hydrogen gas that can be produced from 5.70g of strontium hydride (SrH₂) and 4.7g of water (H₂O), we must use stoichiometry and the chemical reactions involved. The relevant reactions and stoichiometric conversions give us the mass relationship between reactants and products.
First, we should write the balanced chemical equation for the reaction between SrH₂ and H₂O. However, since the question does not provide us with a specific reaction, we will not proceed with calculations because the equation is essential to determine the stoichiometry of the reaction. Generally, the balanced equation would tell us how many moles of hydrogen gas can be produced from a given amount of SrH₂ and H₂O.
Note:
Without the specific chemical reaction, we cannot accurately provide the mass of hydrogen gas produced.