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GaryK [48]
3 years ago
11

News shows evidence of being plagiarized

Chemistry
1 answer:
mel-nik [20]3 years ago
7 0
What this is??????????????????
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What mass of NaCl is dissolved in 150 g of water in a .050<br> msolution?
mart [117]

Answer:

0.4383 g

Explanation:

Molality is defined as the moles of the solute present in 1 kg of the solvent.

It is represented by 'm'.

Thus,  

Molality\ (m)=\frac {Moles\ of\ the\ solute}{Mass\ of\ the\ solvent\ (kg)}

Given that:

Mass of solvent, water = 150 g = 0.15 kg ( 1 g = 0.001 g )

Molality = 0.050 m

So,

0.050=\frac {Moles\ of\ the\ solute}{0.15}

Moles = 0.050\times 0.15\ mol= 0.0075\ mol

Molar mass of NaCl = 58.44 g/mol

Mass = Moles*Molar mass = 0.0075\times 58.44\ g = 0.4383 g

6 0
4 years ago
Which statement is true about heat and light energy?
GarryVolchara [31]

Answer:

I think it's a or c let me look at it one more time hold on!!

4 0
3 years ago
Read 2 more answers
Strong winds and heavy precipitation are common along a/n________front.
Lynna [10]
An occluded front usually brings strong winds and heavy precipitation! =)
6 0
3 years ago
PLEASE HELP!!!
vodka [1.7K]

Answer:

False

Infered from the equation:

Density=\frac{Mass}{Volume}

So it has no relation with weight of substance

3 0
3 years ago
Why should you not change the subscripts in chemical formulas when balancing chemical equations?
antiseptic1488 [7]

Answer:because the chemical formula is vital to the equation it tells you what creates the chemical and whats in it you can change the exponents but not the formula itself

Explanation:

8 0
3 years ago
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