Final answer:
Without a complete balanced chemical equation involving PH3 and NH3, it is not possible to calculate the mass of PH3 formed from 1.30 g of NH3. Additional information is needed to perform this calculation.
Step-by-step explanation:
To find the mass of PH3 that forms from the reaction of 1.30 g of NH3, we would need to first write a balanced chemical equation that includes PH3 and NH3. Assuming we have such a reaction, we would then use molar masses to convert grams of NH3 to moles, use the stoichiometry of the balanced equation to find the moles of PH3 produced, and convert moles back to grams using the molar mass of PH3.
Unfortunately, the question does not provide the necessary chemical reaction, thus we cannot proceed with the calculation without additional information. Chemistry problems require a complete and balanced chemical equation to apply stoichiometric principles and solve for masses of reactants or products.