How would you be able to use the spectrum of each gas to establish its identity
1 answer:
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Suppose we have 100 gr of the substance. Then by weight, it would contain 44.77 gr of C, 7.46 gr of H and 47.76 gr of S. We need to look up the atomic weights of these atoms; M_H=1, M_C=12, M_S=32. The following formula holds (where n are the moles of the substance, M its molecular mass and m its mass): n=m/M. Substituting the known quantities for each element, we get that the substance has 3.73 moles of C, 7.46 moles of H and 1.49 moles of S. In the empirical formula for the molecule, all atoms appear an integer amout of times. Hence, for every mole of Sulfur, we have 2.5 moles of C and 5 moles of H (by taking the moles ratios). Thus, for every 2 moles of sulfur, we have 5 moles of C and 10 moles of H. Now that all the coefficients are integer, we have arrived at an empirical formula for the skunk spray agent: 
Answer:
<h2>2 g/mL</h2>Explanation:
The density of a substance can be found by using the formula
From the question we have
We have the final answer as
<h3>2 g/mL</h3>Hope this helps you
This is an incomplete question, here is a complete question.
Hydrogen chloride and oxygen react to form water and chlorine, like this:
Use this chemical equation to answer the questions in the table below.
Suppose 155. mmol of HCl and 38.8 mmol of O₂ are added to an empty flask. How much HCl will be in the flask at equilibrium?
(1) None.
(2) Some, but less than 155. mmol,
(3) 155. mmol,
(4) More than 155. mmol,
Answer : The correct option is, (1) None
Explanation :
The given balanced chemical reaction is:
From the balanced chemical reaction, we conclude that
As, 4 mmole of HCl react with 1 mmoles of
So, 155. mmole of HCl react with mmoles of
That means, is excess reagent and
is a limiting reagent. All the moles of HCl will consume.
Hence, the correct option is, None.