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laila [671]
3 years ago
13

Calculate the grams of CaCl2 necessary to make a 0.15Msolution.

Chemistry
1 answer:
xxTIMURxx [149]3 years ago
3 0

Answer: mass m = M·c·V

Explanation: M(CaCl2) = 110.98 g/mol, c= 0.15 mol/l,

n=m/M= cV, volume of Solution is not mentioned

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Is Iodine a liquid?If yes then why Bromine is only given as a liquid non-metal?
Gnoma [55]
You can never say that any substance is a liquid, a solid, or a gas. Every substance you name can be all of those, depending on the TEMPERATURE.

At standard pressure . . .

-- Iodine is solid below 113.7°C, and gas above 184°C .

-- Bromine is solid below -7.2°C, and gas above 58.8°C .

-- "Room temperature" is considered to be the range from 20°C to 23.5°C.

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3 0
3 years ago
What is a distinguishing feature about ionic bonds?
Sergeeva-Olga [200]

Answer:

Here:

Explanation:

So ionic bonds are formed due to electrostatic attraction. For example, in NaCl, Na gives an electron to Cl, getting Na+ and Cl- where + and - charges attract and form an ionic bond.

4 0
3 years ago
What's the name for excessive bodily hair growth in women?
maw [93]
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5 0
3 years ago
Read 2 more answers
Potassium reacts with aluminum bromide to produce aluminum and potassium bromide. You will generate ____ moles of aluminum when
SpyIntel [72]

Answer:

You will generate 0.124 moles of aluminum when you react 0.372 moles of potassium

Explanation:

Determine the reaction:

3K + AlBr₃ → Al + 3KBr

Ratio is 3:1

3 moles of K can produce 1 mol of Al

So, 0.372 moles of K, may produce (0.372 .1) /3 = 0.124 moles of Al

6 0
3 years ago
Find the mass of 3.50x10^23 molecules of nitrogen gas
Zarrin [17]

Answer:

16.27 g.

Explanation:

  • It is known that every 1.0 mol of a compound contains Avogadro's no. of molecules (6.022 x 10²³).

<u><em>Using cross multiplication:</em></u>

1.0 mol of N₂ gas contains → 6.022 x 10²³ molecules.

??? mol of N₂ gas contains → 3.50 x 10²³ molecules.

∴ The no. of moles of N₂ gas = (1.0 mol)(3.50 x 10²³ molecules)/(6.022 x 10²³ molecules) = 0.5812 mol.

∴ The mass of 3.50 x 10²³ molecules of N₂ gas = (no. of moles)*(molar mass) = (0.5812 mol)(28.0 g/mol) = 16.27 g.

4 0
3 years ago
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