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horrorfan [7]
3 years ago
14

According to the selection, what is the main weakness of the tortoise?​

Chemistry
1 answer:
Agata [3.3K]3 years ago
8 0

Answer:

Nose

Explanation:

Because every time I touch it's nose, it will hide itself into the shell faster than other places

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A chemist prepares a solution of barium acetate by measuring out of barium acetate into a volumetric flask and filling the flask
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The given question is incomplete. The complete question is :

A chemist prepares a solution of barium acetate by measuring out 32 g of barium acetate into a 350 ml volumetric flask and filling the flask to the mark with water. Calculate the concentration in of the chemist's barium acetate solution. Round your answer to significant digits.

Answer:  The concentration of barium acetate solution is 0.375 mol/L

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

where,

n = moles of solute

V_s = volume of solution in ml

moles of Ba(CH_3COO)_2 = \frac{\text {given mass}}{\text {Molar mass}}=\frac{32g}{255g/mol}=0.125mol

Now put all the given values in the formula of molality, we get

Molarity=\frac{0.125\times 1000}{350ml}

Molarity=0.357M

Therefore, the concentration of solution is 0.375 mol/L

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