Staci

Imagine that a deposit of helium gas has been discovered in Antarctica. It is being shipped to Australia in a rigid (constant volume) tank with a rated max pressure of 100 atm. If the tanks are filled to a pressure of 75 atm in Antarctica on a day when th...

15 years ago

A student placed a mixture of BaO and CaO in a 1.46L flask containing carbon dioxide at 35C and 746mmHg. After the reactions were complete she found that the CO2 pressure had dropped to 2.40 x 10^2mmHg. How many moles of CO2 were consumed in the reactions...

15 years ago

A .326L container holds 0.146g of Ne and an unknown amount of Ar at 30C and the total pressure is 627 mmHg. Calculate the moles of Ar present? (I have calculated temp 308K, pressure is 0.825 atm and moles of Ne are .007)

15 years ago

The boiling point of ethanol is 78.5C and delta H vap = 40.5kJ/mol. Calculate the vapor pressure (in torr) of ethanol at 0.0C ?

15 years ago

How much heat (in kJ)is required to convert 2.565kg of liquid sulfur dioxide at the boiling point to a gas at 60C? BP of SO2 is -10C and delta H vap is 25.73kJ/mol. Specific heat capacity of the gas is 0.622 J/g*K I don't know what formula to use to calcu...

15 years ago

Argon makes up 0.93% by volumee of air. Calculate its solubility (mol/L) in water at 20C and 1.0 atm. Henry's law constant for Argon under these conditions is 1.5 x 10^-3 mol/L*atm.

15 years ago

A household bleach solution contains 5.25% (by mass) NaClO. How many moles of NaClO are needed to make 1000L of the solution? (density = 1.07g/mL)

15 years ago

A household bleach solution contains 5.25% (by mass) NaClO. How many moles of NaClO are needed to make 1000 L of the solution? (density = 1.07g/mL) This is the complete question on my assignment. It's 1000 L.

15 years ago

Why is an air trap necessary in fermentation?

15 years ago

The 24 students in Ms.Cleary's homeroom are surveyed. They are asked which of the several prices they pay for a ticket to the school fasion show Results: $1.00-20 $1.50-20 $2.00-18 $2.50-15 $3.00-12 $3.50-10 $4.00-8 $4.50-7 A. There are 480 students in th...

15 years ago

Help......A 1.0kg metal head of a geology hammer stikes a solid rock withy a velocity of 5.0m/s. Assuming all the energy is retained by the hammer head, how much will its temperature increase? (C head= 0.11kcal/kgCdegrees) I don't comprehend any of this!

14 years ago

.263degrees C

14 years ago

what are the policy implications of social development theories? how have these implications been reflected in actual policy, if at all?

14 years ago

How has the feminist movement influenced criminology? What negative impact has resulted from feminism, if any?

14 years ago

"perhaps more than any other single measurement, atmospheric pressure is the best indicator of current and changing weather conditions." explain and discuss thy this statement is correct. provide some examples (hint: discuss the difference in high and low...

14 years ago

of the three "local wind"(land and sea breezes, mountain and valley breezes, and chinook and santa ana winds)which do you think could be most easily harnessed for the generation of electricity by a huge wind farm? some important things to consider:strengt...

14 years ago

You have a chemical sealed in a glass container filled with air. The glass container has a mass of 200.0 grams and the chemical has a mass of 850 grams. The total mass of the setup is 1050 grams. The chemical is ignited by means of a magnifying glass focu...

13 years ago

consider the functions f(x)=x^3-3 and g(x)=3 sqrt x+3: a. find f(g(x)) b. find g(f(x)) c. determine whether the functions f and g are inverses of each other. I really need help with these, I don't get it at all.

12 years ago

What is the electric force between a +2 µC point charge and a –2 µC point charge if they are separated by a distance of 5.0 cm? Show your work. (µC = 1.0 × 10–6 C)

12 years ago

Please help! Classify each sentence. 1. Sit in the recliner near the fireplace and relax tonight after dinner. 2. Yesterday I accidentally tripped on my shoelace and fell down the steps of the bus!

10 years ago

A 0.65m long cord exerts a centripetal force of 11.6 N on a 0.10 kg mass tied to the end of the cord. What is the tangential and angular velocity of the mass?

4 years ago

I'm calculating moles of Ar to be 0.0038, however, when plugging this into the online homework program it's marking it as incorrect. Am I doing a step incorrectly or do you get a similar answer? Thanks!

15 years ago

I'm sorry I don't have the answer... Did you figure it out? I have the same problem with different numbers. CH390... online.

15 years ago

Can technology solve all problem?

15 years ago

Thank you!

15 years ago

now I'm really lost.....please explain?

14 years ago

thank you for you help on all of my questions. the links have helped.

14 years ago

A patient’s body is less likely to reject an allograft if it comes from a close relative. Why do you think this is true?

13 years ago

thank you Ms.Sue, once again you have come to the rescue.

13 years ago

unfortunetly, none of this comes natural to me so the domains are especially difficult for me too.

12 years ago

To be honest, I really don't know how to do any of it:(

12 years ago

10+4 = 14 is the addition fact that helps you find 14-4.

11 years ago

Joann Reed painted that daisy.

11 years ago

Ok if you have cars A B C D E F G H. Your options for the first three places are : ABC, ABD, ABE, ABF, ABG, ABH ACB, ACD, ACE, ACF, ACG, ACH ADB, ADC, ADE, ADF, ADG, ADH AEB, AEC, AED, AEF, AEG, AEH AFB, AFC, AFD, AFE, AFG, AFH AGB, AGC, AGD, AGE, AGF, AG...

11 years ago

I go to Scott Elementary School. Or better yet - I attend Scott Elementary School.

11 years ago

Adjectives describe a noun. (a noun is a person, place, thing, or idea) nouns - girl, castle, fork, thought adjectives - Asian, stone, dirty, different. adjective noun phrases - Asian girl, stone castle, dirty fork, different thought. stone girl, Asian ca...

11 years ago

25,000 + 12,000 --------- 37,000

11 years ago

sight hearing touch taste smell

11 years ago

Subject = fox verb = sits A sentence must have a subject and verb. This does, so it is a sentence!

11 years ago

A mixture of helium, nitrogen, and oxygen has a total pressure of 763 mmHg . The partial pressures of helium and nitrogen are 244 mmHg and 190 mmHg , respectively. What is the partial pressure of oxygen in the mixture?

9 years ago

wait so what is the answer?

9 years ago

so what are the answers because i need these answers fro a test and its timed.

9 years ago