### Evaluate the total pressure in the tank at 25°c

Assignment Help Chemistry
##### Reference no: EM13523033

For deeper-water diving, mixtures of He and O2 are used in scuba tanks to minimize chances of getting "the bends." For the upcoming dive He and O2 were pumped into a 5.0L tank. The starting volumes, temperatures, and pressures of the gases put into the tank were as follows:

He: 25°C, 1.0 atm, 46 L

O2: 25°C, 1.0 atm, 12 L

Calculate the total pressure (in atm) in the tank at 25°C. Hint: you will first need to calculate the number of moles of each gas added.

### Previous Q& A

#### On the edge-working for eli lilly and company

Before a newly discovered drug is approved for sale, the U. S. Food and Drug Administration ( FDA) requires that it be tested on healthy humans to determine whether it has dangerous side effects. Unfortunately, most healthy people will not take an..

#### Find how long after its release does the mailbag

The height of a helicopter above the ground is given by h = 3.10t3, where h is in meters and t is in seconds. How long after its release does the mailbag reach the ground

#### Explain what''s the unknown molar mass

Benzene's vapor pressure is normally 0.930 atm. A soln of 20.0g unknown molecular solute and 78.11 g benzene has a vapor pressure of 0.900 atm. What's the unknown molar mass. Benzene molar mass= 78.11 g/mole

#### A research project related to research of the professional

A research project related to research of the Professional of Conduct

#### What is her average velocity for the entire trip

A physics professor, equipped with a rocket backpack, steps out of a helicopter at an altitude of 617 m with zero initial velocity. (Neglect air resistance.) What is her average velocity for the entire trip

#### Explain what pressure would the water have to be bottled

Suppose you could buy a bottle of water claiming that it contains 76 ppm oxygen. The law constant for water is k = 1.2 x 10 -3 M atm -1. What pressure would the water have to be bottled under to obtain the claimed concentration

#### Give hobbess responses to aristotles rejections

Give three different reasons why Aristotle would reject Hobbes's argument for why man should be moral and give Hobbes's responses to Aristotle's rejections?

#### Define the new pressure p2 inside the container

If the container is compressed to 2.40 \rm L and the temperature is increased to 36\, \rm ^{\circ}C, what is the new pressure, P_2, inside the container

#### Calculate the resonance frequency and transfer function

Calculate the resonance frequency, fo of the circuit and calculate the cut-off frequencies f1 and f2 of the circuit - Calculate the transfer function

#### Explain how much heat will be transferred when tio2 reacts

How much heat will be transferred when 0.50 mol of TiO2 reacts with 1.60 mol of HCL according to the following equation? TiO2(s)+4HCL(g)->TiCl4(I)+2H2O(g) ?H=-67 kJ

### Similar Q& A

#### Explain a standard enthalpy of formation equal

Which of the following substances would have a standard enthalpy of formation equal to O kj/mol. Select all that apply

#### Explain organic solvent and the partitian coefficient

Using the appropriate equation from your lecture notes, how much of a 5 gram sample will be extracted from 20mL of water using 15mL of an organic solvent and the partitian coefficient is K = 0.50.(nearest hundredth)

#### Explain what percentage of the vitamin c was destroyed

Suppose that you titrate a 3 g sample of orange juice and it turns out to contain only 95.5mg of vitamin C. Further, it took 32.45mL of DCP solution to reach the end point of the titration.

#### Define survival of fish in freezing water

Survival of Fish in Freezing Water, Fish produce glycerol to survive the freezing waters of the Arctic. Determine the degree to which the freezing point of blood and other biological fluids is lowered with the help of glycerol.

#### State one mole of water vapor is expanded reversibly

One mole of water vapor is expanded reversibly from 5L to 15L at a temperature of 800K. Calculate q, w, deltaE for this process assuming that water behaves as a van der Waals gas,

#### How efficient is the extraction of tea leaves containing

how efficient is the extraction of tea leaves containing 1.0g of caffeine with two 30mL portions of chloroform over that of a single-step extraction? KD= 8.36 at 25 C)

#### What is the limiting reagnant

CH4(g) + 2 O2 --> CO2(g) + H2O(g) suppose 1.5 mol of methane is allowed to react with 4 mol of oxygen. what is the limiting reagnant?

#### How many ml of 0.385 m perchloric acid would have to be add

An aqueous solution contains 0.455 M dimethylamine ((CH3)2NH) How many mL of 0.385 M perchloric acid would have to be added to 150 mL of this solution in order to prepare a buffer with a pH of 10.800.

#### Explain what is the initial cell potential

A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 ?C. The initial concentrations of Ni2+ and Zn2+ are 1.50M and 0.100M , respectively. The volume of half-cells is the same.

#### How many moles of alcl3 are formed

A student takes 148. g of BaCl2, and reacts it according to the following equation:  3BaCl2 + Al2(SO4)3 → 3BaSO4 + 2AlCl3 How many moles of AlCl3 are formed?

#### What is the rate of appearance of c

For the reaction 2A + B --> 2C, if B is initially 4.0M and 2min later is 3.0M, what is the rate of appearance of C?

#### How formulate a chemical reaction for a generic alkyl halide

Formulate a chemical reaction for a generic alkyl halide with silver nitrate in ethanol and with sodium iodide in acetone. In each case, which alkyl halides react faster? #### Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!