What is the molarity of a 0.25-liter solution containing 52 grams of HBr?

Question

photon336 · Answer

$$Molarity = \frac{ Moles }{  Liter  }$$

sammyalabamy · Answer

thank you @Photon336

photon336 · Answer

okay so first step we need to find the molar mass HBr

sammyalabamy · Answer

80.912

photon336 · Answer

okay so now we know the molar mass of Hbr and we know how many grams we have. 

we need to find the number of moles like this.. 

$$52~grams~HBr*(\frac{ mole }{ 81grams }) = moles~HBr$$

sammyalabamy · Answer

0.6419

photon336 · Answer

okay now we know 0.6419 moles of HCL 

and our volume is in liters 0.25L 

so now we have all we need to complete this. 

$$\frac{ 0.6419~moles }{ 0.25~L } = Molarity $$

sammyalabamy · Answer

2.5676

Thank you so much @Photon336

photon336 · Answer

no problem you could round up to 2.6 mol/L or 2.6 M 

M is the symbol for molarity btw

photon336 · Answer

Just make sure that if you're given volume it is in liters.