All categories

3 years ago

1 atm is equal to: A. 1 mmHg B. 14.7 mmHg C. 76 mmHg D. 760 mmHg

Chemistry

2 answers:

lakkis [162]3 years ago

7 0

Answer : the correct answer is D.

Explanation :

As per the question, the pressure is given as 1 atm.

We know that atmospheric pressure is,

$P=\rho gh$

where, $\rho$ is the density of mercury.

g is the acceleration due to gravity.

h is the height of mercury column.

The pressure is said to be 1 atm if the mercury column corresponds to 76 Cm at STP.

This can be written as 76 Cm of Hg.

we know, 1 Cm = 10 mm

Hence, 76 Cm = 76 × 10 mmHg = 760 mmHg

Simora [160]3 years ago

4 0

1 atm = 760 mmHg

Answer D

hope this helps!

You might be interested in

How many moles are in 5.5 x 10-23 molecules of H2O

masha68 [24]

Answer:

0.914moles

Explanation:

The number of moles in a substance can be got by dividing the number of atoms/molecules/particles by Avagadro's constant (6.02 × 10^23).

That is;

number of moles (n) = number of atom (nA) ÷ 6.02 × 10^23

According to this question, there are 5.5 x 10-23 molecules of H2O

n = 5.5 x 10^23 ÷ 6.02 × 10^23

n = 0.914 × 10^(23-23)

n = 0.914 × 10^0

n = 0.914 × 1

n = 0.914moles

6 0

3 years ago

FREE PONITS COME GET YOUR PONITS!!!! :)

trasher [3.6K]

Explanation:

Need points thanks.

7 0

3 years ago

Read 2 more answers

The empirical formula for a compound that is 1.2% h, 42.0%cl, and 56.8%o is

Charra [1.4K]

Hope you understand how to work out those types of questions now xD ;)

7 0

3 years ago

40.3 degrees Fahrenheit. Each hour the temperature decreases by 2.09 What is the

Murrr4er [49]

ANSWER

36.12 degrees fahrenheit

6 0

4 years ago

When comparing the two chair conformations for a monosubstituted cyclohexane ring, which type of substituent shows the greatest

Aleksandr [31]

Answer:

See the explanation

Explanation:

In this case, we have to keep in mind that in the monosubstituted product we only have to replace 1 hydrogen with another group. In this case, we are going to use the methyl group $CH_3$ .

In the axial position, we have a more steric hindrance because we have two hydrogens near to the $CH_3$ group. If we have more steric hindrance the molecule would be more unstable. In the equatorial positions, we don't any interactions because the $CH_3$ group is pointing out. If we don't have any steric hindrance the molecule will be more stable, that's why the molecule will the equatorial position.

See figure 1

I hope it helps!

6 0

3 years ago