cie chem ques

[Sue T]

from mj 08
6) The density of ice is 1.00 g cm^–3.

What is the volume of steam produced when 1.00 cm3 of ice is heated to 323 °C (596 K) at a
pressure of one atmosphere (101 kPa)?

[1 mol of a gas occupies 24.0 dm3 at 25 °C (298 K) and one atmosphere.]

A 0.267 dm3
B 1.33 dm3
C 2.67 dm3
D 48.0 dm3

[nid404]

1atm=101kPa

1 moles of water=18g
1g=1/18moles

T= 596K

R=8.31

101000XV=1/18 X 8.31 X 596
           V=275.153333/ 101000
           V=0.00272429043 m3

1m3=1000dm3
 0.00272429043 m3= 0.00272429043 X 1000= 2.7 dm3 approx

[sweetie]

hey,
cud u xplain QUE.26 of may08 .........

[nid404]

hey,
cud u xplain QUE.26 of may08 .........

If the count of Oxygen increases by 2. Then both OH groups have been oxidised further to COOH. If the OH groups have to be oxidised they have to be primary alcohols. Hence they must be attached to carbon 1 and 4. C

Hope this is clear.

[sweetie]

If the count of Oxygen increases by 2. Then both OH groups have been oxidised further to COOH. If the OH groups have to be oxidised they have to be primary alcohols. Hence they must be attached to carbon 1 and 4. C

Hope this is clear.

yup
Thank You

[sweetie]

cud u also plz xplain Q39,21,2 of nov08

i got the vol. of gas remaining as 50, but i cudnt get the vol. after adding NaOH in Q2 ..

[nid404]

cud u also plz xplain Q39,21,2 of nov08

i got the vol. of gas remaining as 50, but i cudnt get the vol. after adding NaOH in Q2 ..

2)https://studentforums.biz/index.php/topic,5334.msg166290.html#msg166290

21) check the attachment.

39) terminating step will involve CH3 radicals reacting to give C2H6. There are 3 carbons in only 1 and 2. So B

[sweetie]

2)https://studentforums.biz/index.php/topic,5334.msg166290.html#msg166290

21) check the attachment.

39) terminating step will involve CH3 radicals reacting to give C2H6. There are 3 carbons in only 1 and 2. So B

cud u xplain 39 in more detail wen u get tym
Thank You

[nid404]

sorry it's the terminating step of propane

so the end product will be C3H7 radicals reacting with each other to produce C6H14

count the number of Carbon atoms in 1,2 and 3
Only 1 and 2 have 6 carbons. So it's B

[sweetie]

sorry it's the terminating step of propane

so the end product will be C3H7 radicals reacting with each other to produce C6H14

count the number of Carbon atoms in 1,2 and 3
Only 1 and 2 have 6 carbons. So it's B

am really sorry, but even 3 has 6carbon atoms..

[nid404]

am really sorry, but even 3 has 6carbon atoms..

oops...I'll figure then..just gimme some time 

[sweetie]

CAN U TELL ME IF THE ATTACHED COMP. IS CHIRAL OR NO???

[nid404]

The Carbon atom here has 5 bonds ....which is not possible. Diagram is wrong

[ruby92]

could someone help me ith o/n 2004
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