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Delli
Questions and answers by visitors named
Delli
Questions (24)
a 300kg piano is being lifted at a steady speed from ground level straight up to an apartment 10.0m above ground. The crane that
6 answers
asked by
Delli
6,908 views
pH= 7.44
What is the ratio of [H2PO4^-]/[HPO4^2-] What does the pH become if 25% of the hydrogen phosphate ions are converted to
1 answer
508 views
pH= 7.44
What is the ratio of [H2PO4^-]/[HPO4^2-] What does the pH become if 25% of the hydrogen phosphate ions are converted to
1 answer
482 views
mole fraction is equal to partial pressure divided by the total pressure
Total pressure= sum of partial pressure use PV=nRT where
1 answer
881 views
when I use henderson-hasselbach
Ka of HOP4^2- = 4.8 x10^-13 pKa= -lg(4.8 x10^-13)=12.3 substituting I get 7.44-12.3 = lg
1 answer
472 views
WHAT IS PK2?
pK2 for H3PO4. Look in your text for k2 for H3PO4. My text, but it's an OLD OLD one lists k2 of 6.2E-8 and pK2 =
1 answer
416 views
A hypothetical weak acid HA, was combined with NaOH in the following proportions: 0.20 mol HA, 0.08 mol NaOH. The mixture was
3 answers
1,403 views
A hypothetical weak acid HA, was combined with NaOH in the following proportions: 0.20 mol HA, 0.08 mol NaOH. The mixture was
1 answer
560 views
With regards to my last question about the acid. Just to clarify, the [HA] that I should use is 0.12 which is the concentration
1 answer
313 views
Calculate Kp at 500 deg C for the reaction- 4No2+6H2O <---> 4NH3+5O2. The value for Kc at 500 deg C is equal to 0.456.
Kc =
1 answer
450 views
How many moles of Calcium chloride can be added to 1.5L of 0.020potassium sulphate before a precipitate is expected? Assume that
4 answers
920 views
Is it possible to obtain pure (200-proof) ethanol using fractional distillation from a fermentation mixture that contains equal
1 answer
428 views
Is it possible to obtain pure (200-proof) ethanol using fractional distillation from a fermentation mixture that contains equal
2 answers
634 views
The pKa values of acetylene, ehtylene and ethane are 25, 44 and 50 respectively. This means that acetylene is the strongest acid
3 answers
1,152 views
C12H20(Y)--> 22CH2=O+ 2CH3C(=O)CH2C(=O)CH3
The reagents used are ozone, Zn and H20 Give condensed formula of C12H20Y
1 answer
405 views
A 0.00400- mole sample of 2-chloro-2methylpropane is added to 150Ml of water, and the mixture is stirred till the p H levels
1 answer
416 views
How many electrons does the p-orbital of a methyl radical carbon CH3^. contain?
3 answers
891 views
How many electrons are there in the p-orbital of a CH3 RADICAL (CH3.) I don't understand how it is 3.
3 answers
440 views
How many electrons are there in the p-orbital of a CH3 RADICAL (CH3.) I don't understand how it is 3.
1 answer
533 views
I still don't understand how to caluculate the number of electrons in the p-orbital. Where do the other two electrons come from
3 answers
403 views
I still don't understand how to caluculate the number of electrons in the p-orbital. Where do the other two electrons come from
1 answer
341 views
How many electrons are in the p-orbital of the methyl radical (CH3^.)
3 answers
1,620 views
What does the ozonolysis followed by hydrolysis of an unsymmetrical, unbranched alkene form?
4 answers
760 views
Light that is polarized along the vertical direction is incident on a sheet of polarizing material. Only 94% of the intensity of
7 answers
6,063 views
Answers (1)
How many electrons are there in the p-orbital of a CH3 RADICAL (CH3.) I don't understand how to count 3.
