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Chemistry Questions and Answers

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Which of the following water-soluble organic compounds would produce a solution with a pH lower than 7 when dissolved in water?
a. CH3C-OH
II
O
b. CH3-NH2
c. CH3-CH3
d. no correct response
In Progress...
ibuprofen is made up of C, H, and O atoms. When a sample of ibuprofen, weighing 5g burns in oxygen, 13.86 g of CO2 and 3.926 g of H2O are obtained. What is the simplest formula of ibuprofen? Answer is C13H18O2 but I don't know how to get the answer
In Progress...
Sodium chloride crystals are ionic. Explain what this statement means?
In Progress...
In the following reaction, how many grams of potassium phosphate, K3PO4, will be produced from 57.7 g of potassium hydroxide, KOH? 3KOH + H3PO4 ---> K3PO4 + 3H2O
In Progress...
A spherical balloon of 21cm diameter is to be filled up with H2 (HYDROGEN) at STP from a cylinder containing gas at 20atm and 300K . If the cylinder can hold 2.82L of water . Calculate the no. of balloons that can be filled up in cylinder?
In Progress...
The lead in lead pencils is actually almost carbon and the mass of a period mark made by a lead pencil is about 0.0001gms how many carbon atoms are there
In Progress...
Given 7.50g of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100% yield?
In Progress...
What is the chemical equation (with the states) for lead and sodium sulfide? I know what both of the reactants are, but I am unsure if it is a single displacement of a synthesis reaction.
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The temperature(T) of an ideal gas varies with it's volume (V) as T=-aV ^ 3+bV^2.where a and b are positive constant s.the maximum pressure of gas during this process is.
In Progress...
Electronic configuration of most electronegative element is
1. 1s2, 2s2, 2p4, 3s1
2. 1s2, 2s2, 2p6, 3s2, 3p5
3. 1s2, 2s2, 2p5
4. 1s2, 2s2, 2p6, 3s2, 3p6
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