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3 years ago

Khjgjhgfmhgxfhkugfdnhmvngchnvnhvhgh

Chemistry

2 answers:

igor_vitrenko [27]3 years ago

5 0

Answer:

I don’t know

Explanation:

bazaltina [42]3 years ago

4 0

Answer: fish are ghosts

Explanation:

Water, space, oxygen. What do they have in common? What do they have that is unique to themselves? One must ponder life’s hidden truths in order to gain true and pure enlightenment.

You might be interested in

Hiw to separate and measure a mixture of iron fillings, sugar, and salt

Alecsey [184]

Add water to mixture to dissolve sugar then filter. sugared water will be the filtrate while the salt & iron fillings will be the residue. use magnet to attract iron fillings and remaining will be salt.

3 0

3 years ago

Assume the molality of isoborneol in your product is 0.275 mol/kg. What is the melting point of your impure sample given that th

aliina [53]

Answer:

168°C is the melting point of your impure sample.

Explanation:

Melting point of pure camphor= T =179°C

Melting point of sample = $T_f$ = ?

Depression in freezing point = $\Delta T_f$

Depression in freezing point is also given by formula:

$\Delta T_f=i\times K_f\times m$

$K_f$ = The freezing point depression constant

m = molality of the sample = 0.275 mol/kg

i = van't Hoff factor

We have: $K_f$ = 40°C kg/mol

i = 1 ( non electrolyte)

$\Delta T_f=1\times 40^oC kg/mol\times 0.275 mol/kg$

$\Delta T_f=11^oC$

$\Delta T_f=T- T_f$

$T_f=T- \Delta T_f=179^oC-11^oC=168^oC$

168°C is the melting point of your impure sample.

4 0

3 years ago

Which substances will make a salt when combined?

BartSMP [9]

Vinegar and tea for sure

3 0

2 years ago

Type the correct answer in each box.

Luba_88 [7]

Answer: The weight of the object on earth =441N

Weight of the object on moon = 72N

6 0

3 years ago

The solubility of a gas is 0.890 g/L at a pressure of 120 kPa. What is the solubility of the gas if the pressure is changed to 1

IgorC [24]

The solubility of the gas if the pressure is changed to 100 kPa is 0.742 g/L

<h3>Effect of Pressure on Solubility </h3>

As the <em>pressure </em>of a gas increases, the <em>solubility </em>increases, and as the <em>pressure </em>of a gas decreases, the <em>solubility </em>decreases.

Thus, Solubility varies directly with Pressure

If S represents Solubility and P represents Pressure,

Then we can write that

S ∝ P

Introducing proportionality constant, k

S = kP

S/P = k

∴ We can write that

$\frac{S_{1} }{P_{1} } = \frac{S_{2} }{P_{2} }$