2 years ago

Which of the following can be calculated from the mass of the reactants used in a chemical reaction?

Chemistry

2 answers:

borishaifa [10]2 years ago

6 0

Answer:

Three of these are correct.

Explanation:

Amount of limiting reactant used in a reaction

Theoretical yield of products

Amount of excess reactant from a reaction

Readme [11.4K]2 years ago

5 0

Answer:

points.

Explanation:

yeah........

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2. 27.8 mL of an unknown were added to a 50.0-mL flask that weighs 464.7 g. The total mass of the flask and the liquid is 552.4

agasfer [191]

Answer:

$d=4.24x10^{-4}\frac{lb}{in^3}$

Explanation:

Hello there!

In this case, according to the given information, it turns out firstly necessary for us to set the equation for the calculation of density and mass divided by volume:

$d=\frac{m}{V}$

Thus, we can find the mass of the unknown by subtracting the total mass of the liquid to the mass of the flask and the liquid:

$m=552.4g-464.7g=87.7g$

So that we are now able to calculate the density in g/mL first:

$d=\frac{87.7g}{27.8mL}=3.15g/mL$

Now, we proceed to the conversion to lb/in³ by using the following setup:

$d=3.15\frac{g}{mL}*\frac{1lb}{453.6g}*\frac{1in^3}{16.3871mL}\\\\d=4.24x10^{-4}\frac{lb}{in^3}$

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zepelin [54]

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Zinc is Zn and Magnesium is Mg

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Arada [10]

D all of the above answers are correct

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