3 years ago

What is the isotope notation of the element that has an atomic number of 24 and a mass number of 52?

Chemistry

1 answer:

Fofino [41]3 years ago

4 0

Answer:

Chromium

Explanation:

Cr has 24 atomic number and mass number 52

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3 years ago

How many milliliters of 0.0896M LiOH are required to titrate 25.0 mL of 0.0759M HBr to the equivalence point?

slavikrds [6]

Answer:

$V_{LiOH}=21.8mL$

Explanation:

Hello,

In this case, during titration at the equivalence point, we find that the moles of the base equals the moles of the acid:

$n_{LiOH}=n_{HBr}$

That it terms of molarities and volumes we have:

$M_{LiOH}V_{LiOH}=M_{HBr}V_{HBr}$

Next, solving for the volume of lithium hydroxide we obtain:

$V_{LiOH}=\frac{M_{HBr}V_{HBr}}{M_{LiOH}} =\frac{0.0759M*25.0mL}{0.0896M} \\\\V_{LiOH}=21.8mL$

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Explanation:

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I do not know the answer. Please help

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I am sorry I don't know, points are points though

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