All categories

2 years ago

How many moles are in 2.00g of H2O

Chemistry

2 answers:

gavmur [86]2 years ago

4 0

n = m/M = 2/18 = 1/9 ~0,1 mol

aleksley [76]2 years ago

4 0

Answer:

.111 mole (using 3 significant digits)

Explanation:

Mole weight of H2O = 2 x 1.008 + 15.999 = 18.015 gm/mole

2 gm / 18.015 gm/mole = .111 mole

You might be interested in

How are catapults an example of a third class lever? Please explain!

Katen [24]

I hope that you can understand this!!! Lol

The thing that you have to pull back to release with, that would be considered a third class lever.

I hope this helps. :)

3 0

3 years ago

At standard temperature and pressure. 0.500 mole of xenon gas occupies

ANEK [815]

Answer:

0.500 mole of Xe (g) occupies 11.2 L at STP.

General Formulas and Concepts:

Gas Laws

STP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 K

Stoichiometry

Mole ratio
Dimensional Analysis

Explanation:

Step 1: Define

Identify.

0.500 mole Xe (g)

Step 2: Convert

[DA] Set up: $\displaystyle 0.500 \ \text{mole Xe} \bigg( \frac{22.4 \ \text{L Xe}}{1 \ \text{mole Xe}} \bigg)$
[DA] Evaluate: $\displaystyle 0.500 \ \text{mole Xe} \bigg( \frac{22.4 \ \text{L Xe}}{1 \ \text{mole Xe}} \bigg) = 11.2 \ \text{L Xe}$

Topic: AP Chemistry

Unit: Stoichiometry

3 0

2 years ago

The process of fermentation involves chemical reactions that convert solid glucose (C6H12O6) into aqueous ethanol and carbon dio

e-lub [12.9K]

Answer:

C6H12O6 —> 2C2H5OH + 2CO2

Explanation:

The equation for the reaction is given below:

C6H12O6 —> C2H5OH + CO2

We can balance the equation above as follow:

There are 12 atoms of H on the left side and 6 atoms of the right side. It can be balance by putting 2 in front of C2H5OH as shown below:

C6H12O6 —> 2C2H5OH + CO2

There are 6 atoms of C on the left side and 5 atoms on the right side. It can be balance by putting 2 in front of CO2 as shown below:

C6H12O6 —> 2C2H5OH + 2CO2

Now the equation is balanced.

4 0

3 years ago

HELP ME PLS Someone give me the answers to the SELF-CHECK! pls...

Ivenika [448]

Sorry its tooo blurry

6 0

3 years ago

I really need help this is for a test I will give a lot of points.

Cerrena [4.2K]

Answer:

7.7 normility and pH

Explanation:

Trust me im an 13 LEVEL COLLEGE TOUR

4 0

2 years ago

How many moles are in 2.00g of H2O​

How many moles are in 2.00g of H2O