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allsm [11]
4 years ago
15

a series circuit contains a generator, two devices, and connecting wires. The resistances of the two devices are 15 ohms and 10

ohms. The voltage supplied by the generator is 75 V. What will be the voltage drop in the device with 10 ohms of resistance?
Chemistry
1 answer:
Naddik [55]4 years ago
7 0
Maybe you can apply the Ohms law to this question:

Ohms law is voltage=current (I) x resistance (R)

I'm afraid that is the only concept i know abt electricity. i hope u find a solution;)
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In the reaction Mg (s) + 2HCl (aq) H2 (g) + MgCl2 (aq), how many moles of hydrogen gas will be produced from 75.0 milliliters of
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HCl is <span>limiting reactant, Mg in excess therefore:

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<span>2 moles HCl  -------------------- 1 mole H2
</span><span>0.075 moles of HCl ------------ ( moles H2)
</span>
moles H2 = 0.075 x 1 / 2

moles H2 = 0.075 / 2

= 0.0375 moles of H2

hope this helps!

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