Ask question

Ask question

All categories

Oksi-84 [34.3K]

3 years ago

6

Potassium and sodium chloride are similar in charge and they both have the same anion. When comparing sodium chloride (36 g / 1

00 mL at 0 oC) and potassium chloride, which has a higher solubility at 0 oC?

1 answer:

lesya [120]3 years ago

7 0

Sodium Chloride has a higher solubility.

You might be interested in

What would happen to life if earth were in a different location within the solar system

chubhunter [2.5K]

Closer=Burn
Farther=Freeze
We are the perfect distance away from the sun for it to sustain life.

3 0

3 years ago

An atom has two valence electrons, but four shells. This element is a member of which group or family?

Vesna [10]

The correct answer is C: the alkaline earth metals!

8 0

2 years ago

A compound is found to contain 37.32 % phosphorus , 16.88 % nitrogen , and 45.79 % fluorine by

Alla [95]

Answer: 1. The empirical formula is $PNF_2$

2. The molecular formula is $PNF_2$

Explanation:

If percentage are given then we are taking total mass is 100 grams.

So, the mass of each element is equal to the percentage given.

Mass of P = 37.32 g

Mass of N = 16.88 g

Mass of F = 45.79 g

Step 1 : convert given masses into moles.

Moles of P = $\frac{\text{ given mass of P}}{\text{ molar mass of P}}= \frac{37.32g}{31g/mole}=1.20moles$

Moles of N = $\frac{\text{ given mass of N}}{\text{ molar mass of N}}= \frac{16.88g}{14g/mole}=1.20moles$

Moles of F = $\frac{\text{ given mass of F}}{\text{ molar mass of F}}= \frac{45.79g}{19g/mole}=2.41moles$

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For P = $\frac{1.20}{1.20}=1$

For N = $\frac{1.20}{1.20}=1$

For F = $\frac{2.41}{1.20}=2$

The ratio of P: N: F= 1: 1: 2

Hence the empirical formula is $PNF_2$

The empirical weight of $PNF_2$ = 1(31)+1(14)+2(19)= 82.98 g.

The molecular weight = 82.98 g/mole

Now we have to calculate the molecular formula.

$n=\frac{\text{Molecular weight}}{\text{Equivalent weight}}=\frac{82.98}{82.98}=1$

The molecular formula will be= $1\times PNF_2=PNF_2$

3 0

3 years ago

Explain why the boiling point of H2S with relative molecular mass 34 is lower than that of H2O with relative molecular mass 18

Levart [38]

Answer and Explanation:

In H2O molecules, due to formation of intermolecular hydrogen bonds, there is molecular association. Large amount of energy is required to break these intermolecular hydrogen bonds. Intermolecular hydrogen bonding is not possible in H2S. Hence, its boiling point is lower and is a gas.

4 0

3 years ago

Help please asap will mark brainliest!! My time is running out.

sukhopar [10]

Answer:

I dont know sorry.

Explanation:

4 0

3 years ago

Read 2 more answers