The answer is ....... 47/10^8
Answer:
2.8 m
Explanation:
From the question given above, the following data were obtained:
Number of mole KBr = 0.210 mole
Mass of water = 0.075 kg
Molality of KBr =?
Molality is simply defined as the mole of solute per unit kg of water. Mathematically, it can be expressed as follow:
Molality = mole of solute / Kg of water.
With the above formula, we can obtain the molality of the KBr solution. This can be obtained as follow:
Number of mole KBr = 0.210 mole
Mass of water = 0.075 kg
Molality of KBr =?
Molality = mole of solute / Kg of water.
Molality = 0.210 / 0.075
Molality = 2.8 m
Therefore, the molality of the KBr solution is 2.8 m.
Answer:
Explanation:
Imagine a chemistry set in front of you
False you should only tell your teacher
You should not wear dangling jewelry and loose clothing and sandals so all of the above. Jewelry what if your leaning over to get something it will get caught Sandals what if glass falls and breaks in your foot and loose clothing it will get caught on fire. You should never horseplay ever. You should see the school nurse if you get hurt.
Hope this helps a little :)
Answer:
2(H2) + 1(O2) = 2 (H2O) is the balanced equation
