All categories

3 years ago

A compound's properties are different than the properties of the elements that make it up.

1 answer:

7 0

The answer is True because elements in a compound combine and become an entirely different substance with its own unique properties.

You might be interested in

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

Select the correct answer. what is the electron configuration for sulfur? a. 1s2 2s2 2p6 3s2 3p4 b. 1s2 1p6 2s2 2p6 3s2 c. 1s2 2

EleoNora [17]

Answer:

the Answer is .A

Explanation:

do you need explanation

6 0

2 years ago

HELP PLEASEE!

Sever21 [200]

Answer:

drought

Explanation:

drought is the dryest of all of the options

6 0

3 years ago

Read 2 more answers

Bret and Cindy took different routes to travel from Point A to Point E. Bret took the route along A, B, C, D, and E. Cindy took

PSYCHO15rus [73]

6 miles, I hope with helps.

3 0

3 years ago

What is the mass of .550 mL of alcohol (density = 82.0 g/mL)

Aleks04 [339]

Answer:

1.223 g/ml

Explanation:

4 0

3 years ago

Read 2 more answers