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3 years ago

At what elevation would there be the highest atmospheric pressure?

Chemistry

1 answer:

Reika [66]3 years ago

4 0

Answer:

The highest sea-level pressure on Earth occurs in Siberia

Explanation:

where the Siberian High often attains a sea-level pressure above 1050 mbar (105 kPa; 31 inHg), with record highs close to 1085 mbar (108.5 kPa; 32.0 inHg).

You might be interested in

Albus Dumbledore provides his students with a sample of 19.3 g of sodium sulfate. How many oxygen atoms are in this sample

Dimas [21]

Answer:

3.27·10²³ atoms of O

Explanation:

To figure out the amount of oxygen atoms in this sample, we must first evaluate the sample.

The chemical formula for sodium sulfate is Na₂SO₄, and its molar mass is approximately 142.05 $\frac{g}{mol}$ .

We will use stoichiometry to convert from our mass of Na₂SO₄ to moles of Na₂SO₄, and then from moles of Na₂SO₄ to moles of O using the mole ratio; then finally, we will convert from moles of O to atoms of O using Avogadro's constant.

19.3g Na₂SO₄ · $\frac{1 mol Na^2SO^4}{142.05g Na^2SO^4}$ · $\frac{4 mol O}{1 mol Na^2SO^4}$ · $\frac{6.022x10^2^3}{1 mol O}$

After doing the math for this dimensional analysis, you should get a quantity of approximately 3.27·10²³ atoms of O.

3 0

4 years ago

Which substance will have the higher melting point,ethanol or ethane?explain

attashe74 [19]

Since hydrogen bonding is a stronger intermolecular force than van der Waals forces, more energy is required to separate the molecules of ethanol than the molecules of ethane. Thus ethanol has a higher melting point than ethane.

6 0

3 years ago

The foul odor of rancid butter is due largely to butyric acid, a compound containing carbon, hydrogen, and oxygen. combustion an

Pavlova-9 [17]

Mass of CO₂ = 8.59 g

Molar mass of CO₂ = 44 g/mol

Moles of CO₂ = Mass of CO₂ / Molar mass of CO₂ = 8.59 g / 44 g/mol

= 0.1952 moles

Now there is 1 mole of C in 1 mole of CO₂

Therefore, moles of carbon = moles of CO₂ = 0.1952 moles

Mass of carbon = moles of C x the atomic weight of C

= 0.1952 moles x 12 g/mol

= 2.3427 g

Mass of H₂O = 3.52g

Molar mass of H₂O = 18g/mol

Moles of H₂O = 3.52g /18g/mol = 0.1956 moles

Now there is 2 moles of H in 1 mole of H₂O

Moles of H = 0.1956 moles X 2 = 0.3912 moles

Mass of H = 0.3912 moles X atomic mass of H

= 0.3912 moles X 1 g/mol = 0.3912 g

Mass of butyric acid = 4.30g

Mass of O = mass of butyric acid - (mass of C + mass of H)

= 4.30 g - 2.3427 g - 0.3912 g = 1.5661 g

Moles of O = mass of O / atomic mass of O = 1.5661 g / 16 g/mol

= 0.0978 moles

Divide by smallest mole to get the molar ratio

C = 0.1952 moles/0.0978 moles = 2

H = 0.3912 moles/0.0978 moles = 4

O = 0.0978 moles / 0.0978 moles = 1

Empirical formula of butric acid is C₂H₄O

Molecular formula of butric acid is C₄H₈O₂

3 0

3 years ago

For the chemical reaction, 2HCl + Ca(OH)2 ➡️ CaCl2 + 2H2O what mass of calcium hydroxide in grams is needed to produce 3.63 mol

wlad13 [49]

Answer:

2HCl (aq) + Ca

(

)

(aq) ---------> Ca

(ppt) + 2

O (aq)

let us calculate the number of moles , as per the chemical reactions;

2 moles of HCl solution reacts with one mole Calcium Hydroxide

(

)

One mole of HCl has mass : 36.5 g/mol, two moles of HCl will have mass, 73 g.

One mole of Ca

(

)

has mass 74.1 g

as per equation; 73 g of HCl reacts with 74.1 g of Ca

(

)

1g of HCl reacts with 74.1g / 73 of Ca

(

)

1g of HCl reacts with 1.015 g of Ca

(

)

NOW AS PER THE QUESTION MOLARITY AND VOLUME OF HYDROCHLORIC ACID IS GIVEN, IT CAN BE USED TO CALCULATE THE MASS OF HYDROCHLORIC ACID IN THE SOLUTION.

NUMBER OF MOLES of HCl ; Molarity of solution x Volume of Solution

# of moles of HCl = (0.40 mol/L ) x 350 mL

= (0.40 mol/L ) x 0.350 L = 0.14 mol

mass of HCl that makes 0.14 mol of HCl = # of moles x molar mass of HCl

mass of HCl = 0.14 mol x 36.5 g/ mol

mass of HCl = 5.11g

As per Stoichiometry , 1g of HCl reacts with 1.015 g of Ca

(

)

, 5.11g of HCl can react with 5.11 x 1.015 = 5.1865 g or 5.2 g of

(

)

5 0

3 years ago

hen car tires are on hot pavement for too long, the pressure inside will ___________ and the volume within the tire will _______

PilotLPTM [1.2K]

Your answer your answer correct

5 0

3 years ago