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3 years ago

Chemistry, need answer ASAP!! 50 points and i'll mark brainliest if correct! ^w^

Chemistry

1 answer:

pishuonlain [190]3 years ago

4 0

Answer:

615 g

Explanation:

In order to convert from moles of any given substance into grams, we have to use said substance's molar mass, as follows:

# moles * Molar mass = grams of substance.

Thus, we now calculate the molar mass of beryllium iodide, BeI₂, using the molar masses of the elements:

Molar Mass of BeI₂ = Molar Mass of Be + (Molar Mass of I)*2 = 262.821 g/mol

Finally we calculate how many grams are there in 2.34 moles of BeI₂:

2.34 mol * 262.821 g/mol = 615 g

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2 years ago

3) If an electrical appliance has 150.0 V applied causing a current of 2.34 amps, what is the

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Explanation:

As per the Ohm's law, which states that the electric current is in direct proportion to the voltage and is in inverse proportion to the resistance. It is given by the expression as,

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Now we have to plug in the values as,

$$ R = \frac{150}{2.34}$

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4 years ago