A 200 mL sample of oxygen is
collected over water at 30 oC and
850 mmHg pressure. What is the
pressure of the dry oxygen gas
only? (The vapor pressure of water
at 30 oC is 24. 5 mm Hg)

Answers

Answer 1

Answer:

825.5 mm

Explanation:

850 mm is the total pressure of the two gases....subtract the water vapor pressure and the remainder is due to the oxygen

850-24.5 = 825.5 mm


Related Questions

A sugar crystal contains approximately 1. 9×1017 sucrose (c12h22o11c12h22o11) molecules. part a what is its mass in mgmg ? express your ans

Answers

Sucrose is a disaccharide, which is a sugar molecule formed from two monosaccharides. In this case, the two monosaccharides are fructose and glucose.

Answer and Explanation: 

The number of molecules a" role="presentation" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: 400; font-size: 16.66px; letter-spacing: normal; overflow-wrap: normal; word-spacing: 0px; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; color: rgb(0, 0, 0); font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; position: relative;">aa is related to a quantity of moles n" role="presentation" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: 400; font-size: 16.66px; letter-spacing: normal; overflow-wrap: normal; word-spacing: 0px; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; color: rgb(0, 0, 0); font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; position: relative;">nn of any substance by Avogadro's number {eq}N_A = \rm 6.022\times...

Read the chemical equation. n2 3h2 → 2nh3 using the volume ratio, determine how many liters of nh3 is produced if 1.2 liters of h2 reacts with an excess of n2, if all measurements are taken at the same temperature and pressure?

Answers

0.8 liters of NH₃ is produced.

What is Chemical equation?

A chemical equation is a symbolic representation of a chemical reaction in the form of symbols and formulae, where the reactant entities are given on the left and the product entities are given on the right, with a plus sign separating the entities in both the reactants and the products and an arrow pointing in the direction of the products to indicate the reaction's direction. The absolute values of the stoichiometric numbers are shown as coefficients next to the symbols and formulas of the entities. Jean Beguin drew the first chemical equation in 1615.

pressure - The SI unit for pressure is the pascal (Pa), which is equal to one newton per square metre (N/m2) of force per unit area of surface. An object's pressure is inversely proportional to the area it is pressing on and inversely proportional to the force it applies.

Given chemical reaction is:

N₂ + 3H₂ → 2NH₃

From the stoichiometry of the reaction, it is clear that:

3 liters of H₂ = produce 2 liters of NH₃

1.2 liters of H₂ = produce 2/3 × 1.2 = 0.8 liters of NH₃

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You are working in a lab on your magnetic levitation experiment. You are standing directly in front of two magnets. Another scientist near you has a malfunction with their equipment and gamma radiation is emitted directly at you, passing through the magnets first. You are wearing a lab coat and goggles. Are you safe?

A. Yes, gamma radiation is not deflected by magnets but it is easily blocked by the lab coat.
B. Yes, gamma radiation is strongly deflected by magnets so it would have missed you.
C. No, gamma radiation is only slightly deflected by magnets so it would still hit you if you were close to the magnets.

Answers

No, gamma radiation is only slightly deflected by magnets so it would still hit you if you were close to the magnets. That is option C.

What is magnetic levitation?

Magnetic levitation which is also called magnetic suspension is defined as the phenomenon in which two magnetic objects are repelled from each other in a vertical direction.

Gamma radiation is defined as a type of electromagnetic wave with the highest energy and shortest wave length.

The gamma rays do not possess any charge and therefore are not affected by electric or magnetic fields.

Therefore, when gamma radiation is mistakenly emitted directly at you, passing through the magnets first, it will still hit you because the ray are only slightly deflected by magnets.

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