Ga3+ and Br1- is what formula?

18.0 mL of water contains 6.022 x 1023 water molecules. How many hydrogen atoms are in 1.00 L of water? (Each water molecule, H2

brilliants [131]

Solution :

lt is given that in 18 mL of water their are $6.022\times 10^{23}$ water molecules.

We know, that 1 molecule of water contains 2 atoms of hydrogen.

Hydrogen atom in 18 mL water is,

$2\times 6.022\times 10^{23} = 12.044 \times 10^{23}$ .

So, number of hydrogen atoms in 1 L = 1000 mL are :

$N = \dfrac{1000}{18}\times 12.044\times 10^{23}\\\\N = 6.69 \times 10^{25}\ atoms$

Hence, this is the required solution.

3 0

3 years ago

Consider the reaction to produce methanolCO(g) + 2H2 (g) <-----> CH3OHAn equilibrium mixture in a 2.00-L vessel is found t

MariettaO [177]

Answer : The value of $K_c$ of the reaction is 10.5 and the reaction is product favored.

Explanation : Given,

Moles of $CH_3OH$ at equilibrium = 0.0406 mole

Moles of $CO$ at equilibrium = 0.170 mole

Moles of $H_2$ at equilibrium = 0.302 mole

Volume of solution = 2.00 L

First we have to calculate the concentration of $CH_3OH,CO\text{ and }H_2$ at equilibrium.

$\text{Concentration of }CH_3OH=\frac{\text{Moles of }CH_3OH}{\text{Volume of solution}}=\frac{0.0406mole}{2.00L}=0.0203M$

$\text{Concentration of }CO=\frac{\text{Moles of }CO}{\text{Volume of solution}}=\frac{0.170mole}{2.00L}=0.085M$

$\text{Concentration of }H_2=\frac{\text{Moles of }H_2}{\text{Volume of solution}}=\frac{0.302mole}{2.00L}=0.151M$

Now we have to calculate the value of equilibrium constant.

The balanced equilibrium reaction is,

$CO(g)+2H_2(g)\rightleftharpoons CH_3OH(g)$

The expression of equilibrium constant $K_c$ for the reaction will be:

$K_c=\frac{[CH_3OH]}{[CO][H_2]^2}$

Now put all the values in this expression, we get :

$K_c=\frac{(0.0203)}{(0.085)\times (0.151)^2}$

$K_c=10.5$

Therefore, the value of $K_c$ of the reaction is, 10.5

There are 3 conditions:

When $K_{c}>1$ ; the reaction is product favored.

When $K_{c}$ ; the reaction is reactant favored.

When $K_{c}=1$ ; the reaction is in equilibrium.

As the value of $K_{c}>1$ . So, the reaction is product favored.

7 0

3 years ago

The measured quantity 0.00410 g written in scientific notation is _______. Using prefixes, the number can be written as ________

vovangra [49]

Answer:

4.10x10⁻³g.

4.10 mg.

Explanation:

Hello,

In this case, considering the given number, we can see it has two digits after the first nonzero digit that is four (4) which is also at the third decimal place, it means that the scientific notation has a negative power as it is at the left of the given zeros, therefore it is:

4.10x10⁻³g.

Moreover, since the proper prefix for the factor x10⁻³ is milli, the number with prefix is:

4.10 mg.

Best regards.

6 0

3 years ago

How does water vapor effect the way you breathe and how you can feel the climate change around you?

Anika [276]

Fills your lungs with air that I’m not great

8 0

3 years ago

Read 2 more answers

Stars which appear to revolve around Polaris and do not set (go below the horizon) are called:

Andrej [43]

Circumpolar stars

Explanation:

Stars which appears to revolve around the Polaris and do not set or go below the horizon are called circumpolar stars.

In short, this stars circles the pole.

Circumpolar stars are not found at the equator.
These stars do not set and they are visible at the north poles.
The simply stay as the earth spins on its axis.

Learn more:

Stars brainly.com/question/11007330

#learnwithBrainly

4 0

3 years ago