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weeeeeb [17]
3 years ago
8

What is the solubility of NaCI in water at 0 degrees Celsius

Chemistry
1 answer:
ra1l [238]3 years ago
6 0

Answer:

35.7 g

Kf - the cryoscopic constant of the solvent; b - the molality of the solution. So, the idea here is that you can only dissolve 35.7 g of sodium chloride, NaCl, in water at 0∘C.

Explanation:

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When you exercise strenuously, your body produces excess heat. Describe what your body does to help prevent your temperature fro
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Your body can cool itself by sweating. When sweat evaporates, it lowers your temperature

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7 0
2 years ago
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If a solution conducts electricity, it is positive evidence that
BlackZzzverrR [31]

Answer:

If a solution conducts electricity, it is positive evidence that solute dissolved in solvent is electrolyte.

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3 years ago
In an accident, a solution containing 2.5 kg of nitric acid was spilled. Two kilograms of Na2CO3 was quickly spread on the area
storchak [24]

First we must write a balanced chemical equation for this reaction

Na_2CO_3 _(_a_q_)+ 2HNO_3_(_a_q_) \implies 2NaNO_3_(_s_) + CO_2_(_g_) + H_2O_(_l_)

The mole ratio for the reaction between HNO_3 and Na_2CO_3 is 1:2. This means 1 moles of Na_2CO_3 will neutralize 2 moles HNO_3. Now we find the moles of each reactant based on the mass and molar mass.

2500g HNO_3 \times \frac{mol}{63.01g\ HNO_3} = 39.67 mol\ HNO_3

2000g\ Na_2CO_3 \times \frac{mol}{105.99g \ Na_2CO_3} = 18.87 mol\ Na_2CO_3

\frac{18.87 mol Na_2CO_3}{39.67\ HNO_3} = \frac{1 molNa_2CO_3}{2 mol HNO_3}

The Na_2CO_3 was enough to neutralize the acid because 18.87:39.67 is the same as 1:2 mol ratio.

4 0
3 years ago
How much heat is released when 105 g of steam at 100.0°C is cooled to ice at -15.0°C? The enthalpy of vaporization of water is 4
Yuki888 [10]
1) (Hvap)(moles of water)=236.9783574kJ
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2) (change in temperature)(mass)(Cliquid)=43.9345172kJ
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3) (Hfus)(moles of water)=35.01942286kJ
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4) (change in temperature)(mass)(Csolid)=3.181465039kJ
(15)(105/18.02)(36.4)/1000
Total released=319.1137625kJ
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3 years ago
FIST ONE TO AWNSER GETS BRAINLYIST AND 50 POINTS IF CORRECT HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
grin007 [14]

Answer:

B

Explanation:

Shows actual sacrifice in order to train and be the best.

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3 years ago
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