Two samples of a compound containing elements a and b are decomposed. the first sample produces 15 g of a and 35 g of
b. you may want to reference ( page 49) section 2.3 while completing this problem. part a the second sample produces 10 g of a and what mass of b? the second sample produces 10 of and what mass of ?

Respuesta :

Answer;

= 23.33 g of B

Solution;

Decomposition gives 15 g of A and 35g of B  

Therefore;  for every 15/15 = 1 gram of A there are 35/15 = 2.3333 g of B

Hence; If there are 10 g of A, (10*1), there will be;

= 10 × 2.33333 g = 23.33 g

= 23.33 g of B

Answer:

23.33 grams of element b was produced by second sample of the compound on decomposition.

Explanation:

Sample-1 of compound containing ab gives :

Mass of a = 15 g

Mass of b = 35 g

Ratio of mass of mass of a to mass of b:

[tex]\frac{15 g}{35 g}=\frac{3}{7}[/tex]

Sample-2 of compound containing ab gives :

Mass of a = 10  g

Mass of b = x

Ratio of mass of mass of a to mass of b:[tex]\frac{10 g}{x}[/tex]

Since the both samples are of same compound the ratio of masses will remain same.

[tex]\frac{10 g}{x}=\frac{3}{7}[/tex]

[tex]x=\frac{70 g}{3}= 23.33 g[/tex]

23.33 grams of element b was produced by second sample of the compound on decomposition.

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