Please solve 13
Please

1.126 M

Explanation:

From the question given, we obtained the following:

Mass of LiBr = 98g

Volume = 1 L

Molarity of LiBr =?

Next, we'll determine the number of mole of LiBr. This is illustrated below:

Molar Mass of LiBr = 7 + 80 = 87g/mol

Mass of LiBr = 98g

Number of mole = Mass/Molar Mass

Number of mole of LiBr = 98/87

Number of mole of LiBr = 1.126 mole

Now, we can calculate the molarity of LiBr. This is illustrated below:

Molarity is defined as mole per unit litre of the solution. Mathematically, it is represented as:

Molarity = mole /Volume

Mole of LiBr = 1.126 mole

Volume = 1 L

Molarity of LiBr =?

Molarity of LiBr = 1.126 mole /1 L

Molarity of LiBr = 1.126 M

it means there are 3 atoms of oxygen

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

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