How many moles of are needed to react with 0.460 ?

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To determine the number of moles of a substance needed to react with another substance, we need to use stoichiometry. Stoichiometry is based on the balanced chemical equation, which shows the molar ratios of the reactants and products.

The balanced chemical equation must be provided in order to find the answer to this question. Once you have the balanced equation, follow these steps:

1. Identify the mole ratios: Examine the balanced equation to determine the stoichiometric relationship between the given substances. For example, if the balanced equation is:

aA + bB → cC + dD

Then the mole ratio of A to B is given by a/b.

2. Calculate the moles of the known substance: Use the given mass (in grams) or volume (in liters) of the known substance and its molar mass to determine the number of moles. In this case, a mass of 0.460 g is given. Convert the mass to moles by dividing it by the molar mass of the substance.

3. Apply the mole ratio: Use the mole ratio derived from the balanced equation to calculate the moles of the unknown substance. Multiply the moles of the known substance by the mole ratio.

4. Round the answer: Round the calculated moles of the unknown substance to an appropriate number of significant figures, based on the given information and the limitations of the problem.

It is important to note that without the balanced chemical equation, it is not possible to determine the number of moles of the substance that reacts with another substance. Please provide the balanced chemical equation, and we can assist you further in calculating the required number of moles.