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kow [346]
2 years ago
12

Is "isotope" another name for an atom??

Chemistry
2 answers:
GuDViN [60]2 years ago
5 0
An Isotope is when an element has the same number of protons but different number of neutrons. its the same element but the masses(protons+neutrons) are different
notsponge [240]2 years ago
5 0
Isotope is a given element that have the same number of protons in each atom
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The given question is incomplete. The complete question is:

A chemist adds 0.85 L of a 0.0050M calcium sulfate to a reaction flask. Calculate the mass in grams of calcium sulfate the chemist has added to the flask. Round your answer to significant digits.

Answer: The mass in grams of calcium sulfate the chemist has added to the flask is 0.58 g

Explanation:

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

Molarity=\frac{n}{V_s}

where,

n = moles of solute

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moles of CaSO_4 = \frac{\text {given mass}}{\text {Molar mass}}=\frac{xg}{136g/mol}

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

0.0050=\frac{x}{136\times 0.85}

x=0.58 g

Therefore, the mass in grams of calcium sulfate the chemist has added to the flask is 0.58 g

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