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Mazyrski [523]
2 years ago
7

How many grams are in 0.39 moles of water

Chemistry
1 answer:
Shtirlitz [24]2 years ago
5 0

Answer:   7.025959200000001

Explanation:

You might be interested in
Which substance has a molar mass of 33.99 g/mol?
alex41 [277]

Answer:

PH₃.

Explanation:

Hello.

In this case, among the options:

PH₃, GaF₃, SF₂ and CO₂

We compute their molar masses by adding the atomic masses of the constituting elements by their subscripts:

M_{PH_3}=m_P+3*m_H=30.97+3*1.01=34.00g/mol\\\\M_{GaF_3}=m_{Ga}+3*m_F=69.72+3*19.00=126.72g/mol\\\\M_{SF_2}=m_{S}+2*m_F=32.07+2*19.00=70.07g/mol\\\\M_{CO_2}=m_{C}+2*m_O=12.01+2*16.00=44.01g/mol

Thus, the answer is PH₃.

Best regards.

6 0
3 years ago
The ________ of acids, buffers, enzymes, and water aids in the breakdown of food.
tatuchka [14]

The <u>secretion</u><u> </u>of acids, buffers, enzymes, and water aids in the breakdown of food.

The food moves through the gastrointestinal tract and breaks down into smaller particles for energy, cell repair, and growth.

Digestion begins when eating and chewing food with the help of teeth in the mouth, then it goes down to the small intestine.

While moving through the gastrointestinal tract it mixes with juices, acids, enzymes, and water which disintegrates the large molecules of food into smaller ones and makes it suitable for assimilation and absorption in the body.

If you need to learn more about buffer click here:

brainly.com/question/1385846

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7 0
1 year ago
Numero de oxidacion <br> Fe + O2=Fe2O3
nexus9112 [7]

Fe =0

O2 =0

Fe in Fe2O3 =+3

O in Fe2O3=-2

7 0
3 years ago
Please help me with dis
topjm [15]

Answer:

c

Explanation:

4 0
3 years ago
A gold coin contains 3.47 × 10^23<br> gold atoms.<br> What is the mass of the coin in grams?
VashaNatasha [74]

Answer:

Mass = 114.26 g

Explanation:

Given data:

Number of gold atoms = 3.47×10²³ atoms

Mass in gram = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ atoms

3.47×10²³ atoms × 1 mol  /6.022 × 10²³ atoms

0.58 mol

Mass of gold:

Mass = number of moles × molar mass

Mass = 0.58 mol × 197 g/mol

Mass = 114.26 g

4 0
3 years ago
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