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julsineya [31]
2 years ago
10

A swimming pool reading reports that chlorine is present at 130 ppm. How many grams of chlorine are present per liter of pool wa

ter?
Chemistry
1 answer:
11111nata11111 [884]2 years ago
7 0

130 ppm will contain  0.12985167 grams of chlorine present in per liter of pool water.

<h3>What is ppm?</h3>

This is an abbreviation for "parts per million" and it also can be expressed as milligrams per liter (mg/L).

1001.142303 ppm is equal to 1 g/L

So, 130 ppm will contain  \frac{130}{1001.142303} grams of chlorine present in per liter of pool water which is equal to 0.12985167 gram/L.

Learn more about ppm here:

brainly.com/question/2618749

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How many grams of Al are needed to react with 63.0 g of FeO
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The amount of Al required will be 15.77 grams

<h3>Stoichiometric problem</h3>

First, the equation of the reaction:

2Al +3 FeO -- > Al_2O_3 + 3Fe

The mole ratio is 2:3.

Mole of 63.0 g of FeO = 63/71.84 = 0.8769 moles

Equivalent moles of Al = 0.8769 x 2/3 = 0.5846 moles

Mass of 0.5846 moles Al = 0.5846 x 26.98 = 15.77 grams

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Supersonic flight over land is typically forbidden to minimize disruption to people on the ground. This meant that until it was over open water, Concorde could not operate at its maximum Mach 2 capability.

<h3>What is Concorde?</h3>
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  • It's improbable that Concorde will ever fly for an airline again in a commercial capacity. The economics of reactivating Concorde and incorporating it into the fleet of a contemporary airline would be challenging to justify, even if the technical and regulatory concerns could be handled.
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The element iodine forms a(n) _______ with the charge . The symbol for this ion is , and the name is . The number of electrons i
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Answer:

The element iodine forms an anion with the charge -1. The symbol for this ion is I⁻¹, and the name is iodide. The number of electrons in this ion is 7.

Explanation:

Hello,

In this case, we have to consider iodine has the capacity to accept the electrons lost by other elements such as metals or hydrogen by becoming negatively charged. Such phenomena makes iodine to form an anion (negatively charged) with the charge -1, since it only needs one electron to attain the octet. Moreover, the symbol of such ion is I⁻¹ and its name is iodide. By cause of the aforementioned, the number of electrons it has is 7 since at its outer shell seven electrons are found (see electron configuration Kr,5s²,5p⁵).

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