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Llana [10]
2 years ago
11

Cần bao nhiêu gam KMnO4 và bao nhiêu mililit dung dịch axit clohiddric 1M để điều chế đủ khí clo tác dụng với sắt , tạo nên 16,2

5 G FeCl3
Chemistry
1 answer:
Verdich [7]2 years ago
6 0

Answer:

I don't know what you're saying cuz give me the brainless answer please

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Consider the genetic cross for absent-mindedness, which is a dominant trait. What is the probability that the offspring of this
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To interconvert the concentration units molality (m) and mass percent, you must also know the density of the solution. A) True B
uranmaximum [27]

Answer:

The correct answer is option false.

Explanation:

Molality of the solution defined as moles of substance present in 1 kilogram of   solvent.

Moles = \frac{Mass of solute}}{\text{molar mass of solute}}

Molality=\frac{Moles}{\text{Mass of solvent(kg)}}

Mass of percent (w/w%) of the solution is defined as amount of solute present in 100 grams of solution.

(w/w\%)_=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 100

So, if want to inter-convert molality into mass percent we can do that without knowing density of solution.

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7 0
3 years ago
How many grams of NaHCO3are in 3.75 x 10 ^-3 moles of NaHCO3<br><br> PLS HELP DUE TODAY
hodyreva [135]

Answer: m= 3.15x10-3 g NaHCO3

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3 years ago
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