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Pavel [41]
3 years ago
14

Sterling silver contains silver and copper metals. if a sterling silver chain contains 17.6g of silver and 2.40g of copper, what

is the percent of silver?__________% write your answer in decimal number
Chemistry
1 answer:
Bogdan [553]3 years ago
7 0

Answer:-  0.88

Solution:- Masses of silver and copper metals are given and we are asked to calculate the percentage of silver in the alloy.

mass percent of Ag = (\frac{mass of Ag}{mass of alloy})*100

Mass of Ag = 17.6 g

mass of Cu = 2.40 g

mass of alloy = 17.6 g + 2.40 g = 20.0 g

Let's plug in the values in the formula:

mass percentage of Ag = (\frac{17.6}{20.0})*100

mass percentage of Ag = 88%

So, the mass percentage of silver in sterling silver is 88% and in decimal form it is 0.88.

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Hey there!!

We generally use s,p,d,f formula.

So, let's do with it.

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3. Tungsten.

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So, it's electronic configuration is;

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Atomic no. = 12

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= 1 {s}^{2} 2 {s}^{2} 2 {p}^{6}3 {s}^{2}

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

3 0
4 years ago
What sample is a pure substance?A. a test tube of zinc oxide.
Mice21 [21]
The correct answer is A. A test tube of zinc oxide. Zinc oxide is a compound which is a pure substance composed of two or more elements. They can only be separated or broken down into its individual elements or smaller compounds by chemical means. Therefore, the answer is a test tube of zinc oxide.
7 0
4 years ago
Read 2 more answers
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