All categories

3 years ago

How does the molecular property of water affect its cohesive properties?

Chemistry

1 answer:

WARRIOR [948]3 years ago

3 0

Because of waters molecular properties it affects the cohesiveness by being more prone to stick to one another

You might be interested in

How many grams of O2 are needed to react with 18.2 g of NH3?

erastova [34]

Answer:

44 g oxygen are needed.

Explanation:

Given data:

Mass of oxygen needed = ?

Mass of ammonia = 18.2 g

Solution:

Chemical equation:

4NH₃ + 5O₂ → 4NO + 6H₂O

Now we will calculate the number of moles of ammonia:

Number of moles = mass/molar mass

Number of moles = 18.2 g/ 17 g/mol

Number of moles = 1.1 mol

Now we will compare the moles of ammonia with oxygen from balance chemical equation.

NH₃ : O₂

4 : 5

1.1 : 5/4×1.1 = 1.375 mol

Mass of oxygen needed:

Mass = number of moles × molar mass

Mass = 1.375 mol × 32 g/mol

Mass = 44 g

4 0

2 years ago

Please help me out with this

d1i1m1o1n [39]

Answer
I think it’s 5
Explanation

4 0

2 years ago

When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(II)

lesya692 [45]

Answer: The mass of lead deposited on the cathode of the battery is 1.523 g.

Explanation:

Given: Current = 62.0 A

Time = 23.0 sec

Formula used to calculate charge is as follows.

$Q = I \times t$

where,

Q = charge

I = current

t = time

Substitute the values into above formula as follows.

$Q = I \times t\\= 62.0 A \times 23.0 sec\\= 1426 C$

It is known that 1 mole of a substance tends to deposit a charge of 96500 C. Therefore, number of moles obtained by 1426 C of charge is as follows.

$Moles = \frac{1426 C}{96500 C/mol}\\= 0.0147 mol$

The oxidation state of Pb in $PbSO_{4}$ is 2. So, moles deposited by Pb is as follows.

$Moles of Pb = \frac{0.0147}{2}\\= 0.00735 mol$

It is known that molar mass of lead (Pb) is 207.2 g/mol. Now, mass of lead is calculated as follows.

$No. of moles = \frac{mass}{molar mass}\\ 0.00735 = \frac{mass}{207.2 g/mol}\\mass = 1.523 g$

Thus, we can conclude that the mass of lead deposited on the cathode of the battery is 1.523 g.

3 0

2 years ago

Indicate whether aqueous solutions of each of the following solutes will contain only ions, only molecules, or mostly molecules

Zanzabum

Answer:

Following are the solution to the given points:

Explanation:

In point a, the answer is only ions because of $NH_4Cl$ has a strong electrolyte.

In point b, the answer is the only molecules because of ethanol $CH_3CH_2OH$ , it has a nonelectrolyte.

In point c, the answer is the few ions because of hydrocyanic acid HCN, which has a weak electrolyte.

6 0

2 years ago

Can u help me with this

dolphi86 [110]

Answer:

Explanation:

the reason is because your a homosiejenenddj

8 0

2 years ago