Tuesday

July 29, 2014

July 29, 2014

Total # Posts: 41

**Math**

You are about to leave for vacation, but you forgot your socks! You go back to your room but lights are out, can't see. You remember that in your draw you have 10 pair black, 10 pair white and 11 pair blue all mixed up. How many socks do you need to take out to be SURE you...

**Math**

no I think that is wrong because the answer is -32/5 I just need the work.

**Math**

what is -6.4 as a fraction?

**Physics**

A plane drops a hamper of medical supplies from a height of 2960m during a practice run over the ocean. The planes horizontal velocity was 108m/s at the instant the hamper was dropped. What is the magnitude of the overall velocity at the hamper at the instant it strikes the su...

**chem class**

The pH of a solution prepared by mixing 50.0 mL of 0.125 M KOH and 50.0 mL of 0.125 M HCl is __________. i know the answer is 7.00, but im not sure how to solve it, do i create an ice chart?

**chemistry**

The pH of a solution prepared by mixing 50.0 mL of 0.125 M KOH and 50.0 mL of 0.125 M HCl is __________. i know the answer is 7.00, but im not sure how to solve it, do i create an ice chart?

**6th grade**

The direction sliding between tire and road.

**chem 1406**

ok thats where i got the number 8260000kj=kj uuuggggh i dont know what im doing wrong!!

**chem 1406**

ok thats where i got the number 8260000kj=kj uuuggggh i dont know what im doing wrong!!

**chem 1406**

ok so (2000moles/1)(4130kj/1mole) = (kj/2000 moles)(2000 moles/1) (2000)(4130kj) = kj now what?

**chem 1406**

ok so then i set it up wrong it should be 4130 kj/1 mole = 2000 moles/kj and that time i got 8260000 i dont know if that is right because the kj would cancel out too

**chem 1406**

i got 2.065 kJ/mole

**chem 1406**

so i would set the problem up like this.... 4130kJ/1 mole = xkJ/2000 moles ???

**chem 1406**

Consider: C7 H16(L) + 11 O2 (G) yields 7 CO2 + 8 H2O (L) delta Hreaction = -4130 kJ How much energy is released when 2,000 moles of C7 H16 is combusted?

**another college chem**

its all good

**another college chem**

Calculate the boiling point of a 4.35 m benzene solution in phenol. (phenol bp=181.75 degree C and Kb=304 degree C/m)

**College chemistry**

ok, we didnt do joules in class, so hopefully thats what my teacher wants. thank you!

**College chemistry**

i got 5020.8

**College chemistry**

i got 5020.8

**College chemistry**

ok so it'd be (2.00*10^2)(6.00 degree C) and then what would be the specific heat?

**College chemistry**

do i use the 5.00 g or the 2.00 * 10^2 g?

**College chemistry**

5.00 g of octane are burned in a bomb calorimeter containing 2.00 * 10^2 g of water. how many Calories of energy are released if the water temperature increases 6.00 degrees C?

**College chemistry**

ok thank you!! i posted a new question! i have a test tomorrow morning and im doing a practice exam and a few questions stumped me!!

**College chemistry**

i got a huge number, is 191.20 correct?

**College chemistry**

How do you calculate the number of mL you would use to prepare 5.0 L of 0.20 M NaOH from a 5.23 M stock solution.

**chemistry**

Calculate the number of mL you would use to prepare 5.0 L of 0.20 M NaOH from a 5.23 M stock solution.

**geometry**

describe how you would find the total area of the lateral faces of a cube?

**MATH**

LAMONT IS REQ TO READ 1 BIO, 1 SCIENCE, AND 1 POETRY BOOK EACH MONTH. HIS BOOK CHOICES ARE: 2 DIFF BIOS 3 DIFF SCIENCE 3 DIFF POETRY HOW MANY COMBINATIONS OF REQ BOOKS ARE POSSIBLE?

**math**

I have the upse question and want to know what the upse stands for. I think the u means understand, p means plan and s means solve and e means evaluate, but I am not sure. I would also like an example of this.

**math**

Can anyone tell me the parts to an upse which is used to solve a word problem? Could you also give me an example of how it works. Thanks

**math**

how do i solve the problem what is the radius of a circle with a circumference of 24 pie

**math**

how do i solve the following: 6 X 10 to the power of one + 5 X 10 to the power of zero + 4 X 10 to the negative power of one?

**math**

how do I add decimals for example 3.2 + 1.8

**math**

how do i write a fraction for 87 1/2 percent

**math**

I don't understand how to do it can you show me.

**math**

how do i solve 8 is to 15 as 24 is to __________

**math**

how can you tell which is smaller 0.33 or 1/3

**math**

What is the largest prime number less than 50 and how do you know?

**Math**

LIV Arabic number?

**history**

Thanks!

**history**

What does class-system and class-state mean? I can't find the meanings in the dictionary.

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