Calculate the amount of phenylhydrazine required (quote your answer in grams and to 3 significant figures).Formula Weight of phenylhydrazine - 108.14

Question

BlackTom AI · Accepted Answer

The problem asks for the amount of phenylhydrazine required, expressed in grams and to 3 significant figures, and provides the formula weight (FW) of phenylhydrazine as 108.14 g/mol.

First, identify what additional information is needed: to determine a mass in grams, you must know the amount in moles (or the stoichiometric amount from a reaction). Without a specified number of moles or a reaction equation, you cannot convert to grams uniquely because mass depends on how much is required for the reaction.

Next, outline the standard conversion if the moles were known: you would multiply the number of moles by the formula weight, using the relation: mass (g) = moles × FW (g/mol). For example, if you were told that 0.0330 moles of phenylhydrazine were required, then:
- mass = 0.0330 mol × 108.14 g/mol = 3.568 g, which would round to 3.57 g (3 sig figs).

Since the problem statement does not specify the amount of phenylhydrazine in moles (or provide a balanced equation to deduce it), there is no unique numerical answer that can be computed from the given information alone. Any calculation claiming a specific gram value would rely on an unstated quantity of moles or an unstated stoichiometric amount from a reaction equation.

If additional context were provided (for instance, the reaction stoichiometry or the desired number of moles of phenylhydrazine to be used), you would proceed as follows: determine the required moles from the context, then multiply by 108.14 g/mol to obtain the mass in grams, and finally round to 3 significant figures. Without that context, the calculation cannot be completed uniquely.

In summary, the FW of phenylhydrazine gives the conversion factor from moles to grams, but the essential moles figure is missing, so the mass cannot be determined from the information given alone. To align with the requested 3-significant-figure result, you would need the exact moles to multiply by 108.14 g/mol and then apply rounding rules.

Calculate the amount of phenylhydrazine required (quote your answer in grams and to 3 significant figures).Formula Weight of phenylhydrazine - 108.14

查看解析

登录即可查看完整答案

类似问题

2.2 Calculate molecular mass, formula mass and molar mass

Calculate the amount of magnesium turnings required (quote your answer in grams and to 3 significant figures). Formula weight of Magnesium - 24.31

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单