Jetta
Most popular questions and responses by Jetta
chemistry
a sample containing 1.50 mol neon gas has a volume of 8.00L.what is the new volume of the gas in liters when the following changes occur in the quantity of the gas at constant pressure and temperature? a.a leak allows onhalf of the neon atoms to escape.
asked on June 27, 2010 
chemistry
calculate the pressure,in atmospheres, of 2.00 mol helium gas in a 10.0L container at 27 celcius?
asked on June 27, 2010 
chemistry
calculate the pressure,in atmospheres, of 2.00 mol helium gas in a 10.0L container at 27 celcius?
asked on June 27, 2010 
chemistry
How much 0.150 M sodium hydroxide would be required to just neutralize 15 mL of 0.175M hydrochloric acid? 15mL x 0.150M/0.175M=12mL correct!
asked on June 29, 2010 
chemistry
a sample of helium gas has a volume of 6.50L at a pressure of 845mm Hg and a temperature of 25 celcius.what is the pressure of the gas in atm when the volume and temperature of the gas sample are changed to the following: a. 1850 mL and 325K
asked on June 27, 2010 
chemistry
Why are optical isomers not found for CH2ClBr?
asked on June 29, 2010 
math
Multiplying and Dividing Rational Expressions: 2) x^28x+7/x^2+6x7 = (x7)/(x+7) 3) x^25x+6/x+4 times 3x+12/x2 =3(x3) 4)2x3/5x+1 divided by 6x^213x+6/15x^27x2=1 5) x^39x/x^2+11x+24 times x^2+7x8/x^24x+3= x(x3)(x1)/(x+3)(x+8) 6) 4x8/x^2x6
asked on August 3, 2010 
math
Multiplying and Dividing Rational Expressions: 2) x^28x+7/x^2+6x7 = (x7)/(x+7) 3) x^25x+6/x+4 times 3x+12/x2 =3(x3) 4)2x3/5x+1 divided by 6x^213x+6/15x^27x2=1 5) x^39x/x^2+11x+24 times x^2+7x8/x^24x+3= x(x3)(x1)/(x+3)(x+8) 6) 4x8/x^2x6
asked on August 4, 2010 
chemistry
Why are cis and trans isomers not possible for ClCH2CH2Cl? Because it is a single bonded compound and cistrans isomerism is only possible when fre rotation about a bond is restricted or a double bond or cycle is essential for existence of cistrans
asked on June 29, 2010 
chemistry
use the molar volume of a gas to solve the following at STP: a. the number of moles of O2 in 44.8 L O2 gas. b. the number of moles of CO2 in 4.00L CO2 gas. c. the volume(L) of 6.40g O2. d. the volume(mL) occupied by 50.0g neon.
asked on June 27, 2010 
chemistry
Why are optical isomers not found for CH2ClBr?
asked on June 29, 2010 
chemistry
why is C4H10 the simplest alkene that can have structural isomers? Because compounds wwith the same molecular formula but different structural formula are called isomers in C4H10
asked on June 29, 2010 
chemistry
solve for the new pressure when each of the following temperature changes occurs, with n and V constant: b. an aerosol can has a pressure of 1.40 atm at 12 celcius.what is the final pressure in the aerosol can if it is used in a room where the temperature
asked on June 27, 2010 
math
Multiplying and Dividing Rational Expressions: 1. 2x^4/x^5 times 6x/x^3 times x/4= 3/x^2
asked on August 4, 2010 
math
Multiplying and Dividing Rational Expressions: 1. 2x^4/x^5 times 6x/x^3 times x/4= 3/x^2
asked on August 3, 2010 
chemistry
why is unecessary to measure precisely 25.00mL of unknown acid into the beaker?
asked on June 29, 2010 
chemistry
A volatile liquid was allowed to evorate in a 43.298g flask that has a total volume of 252mL.the temperature of the water bath was 100 celsius at the atmospheric pressure of 776 torr.the mask of the flask and condensed vapor was 44.173g.calculate the molar
asked on June 28, 2010 
math
solve for X ? 1) 83x < 14 3x/3 < 6/3 x=2 2) 7x 3 > 4x +3 3x 3> 3 3x/3 >6/3 x>2 3) x5 8 x4 4) x+ 7 30 x 6 are they correct..
asked on July 15, 2010 
math
2(x+4)^3(3x15)^4=0 solve for x. is the answer 3,4
asked on July 13, 2010 
math
find the degree of 2x^5y^3+6x^2y^7 is the answer 14
asked on July 13, 2010 
math
how can i find the degree of 2x^5y^3+6x^2y^7
asked on July 12, 2010 
chemistry
a graduated cylinder weights 64.376g empty.when i measure 30.0mL into it weights 89.98g.what is the density of the liquid? 64.376g89.98g=25.604g then i 25.604/30.0=.853
asked on June 29, 2010 
chemistry
calculate the densities of each of the following gases in g/L at STP: a. F2 b. CH4 c. Ne d. SO2
asked on June 27, 2010 
chemistry
11.31) solve for the new pressure when each of the following temperature changes occurs, with n and V constant: a. a gas sample has a pressure of 1200 torr at 155 celcius. what is the final pressure of the gas after the temperature has droped to 0 celcius?
asked on June 27, 2010 
biology
1. Which bond will comes apart in water? answer: ionic
asked on September 15, 2010 
Biology
Hydrogen= 1 proton, 0 Neutrons, 1 Electrons and 1 electrons in outer shell. is correct!
asked on September 10, 2010 
math
Radical Equation: Solve for x. 2x+6=1+2x1
asked on August 1, 2010 
math
is 9x^236x+25 a perfect square? the answer is no
asked on July 14, 2010 
math
Find the degree of 7u^4v^2w^5 is the answer 11
asked on July 13, 2010 
math
Find the degree of 7u^4v^2w^5
asked on July 12, 2010

math
are they correct?
posted on August 4, 2010 
math
would you tell me please are they correct?
posted on August 4, 2010 
math
is the answer 11
posted on July 13, 2010 
math
is the answer 14
posted on July 13, 2010 
chemistry
butane CH3CH2CH2CH3 iso butane CH3CH(CH3)CH3
posted on June 29, 2010 
chemistry
would you please tell me the calculation....please
posted on June 28, 2010 
chemistry
is the answer for this one 7.22
posted on June 28, 2010