Questions tagged 'Chemistry'
452 questions
How much more acetic acid (pKa = 4.76) than acetate should be in solution to maintain a pH of 4.00?
I need assistance with a chemistry problem related to buffer solutions. Specifically, I am trying to determine how much more acetic acid (with a pKa of 4.76) is needed than acetate to maintain a pH of...
Feb 09, 2025
If 30.0g of MgSO4*7H2O is thoroughly heated, what mass of anhydrous magnesium sulfate will remain?
If 30.0 g of magnesium sulfate heptahydrate (MgSO4·7H2O) is thoroughly heated, what mass of anhydrous magnesium sulfate (MgSO4) will remain after the water molecules are lost?
Dissociation equation for C6H5NH3+?
The problem asks us to write the dissociation equation for C6H5NH3+ with water as a reactant. Would this be correct? C6H5NH2 + H2O → C6H5NH3+ + OH-? I realize that this equation doesn't exactly repres...
Feb 09, 2025
Consider this reaction: 4NH3(g) + 3O2(g) –> 2N2(g) + 6H20(g)?
Consider the following reaction: 4 NH₃(g) + 3 O₂(g) → 2 N₂(g) + 6 H₂O(g) If the rate of formation of N₂ is 0.10 M/s, what is the corresponding rate of disappearance of O₂? 0.10 M/s 0.15 M/s 0.3...
1. what is this element: [Ar] 4s1?
What is the element represented by the notation [Ar] 4s¹? Additionally, I have a question regarding the following elements: Element A: 1s² 2s² 2p⁶ Element B: 1s² 2s² Element C: 1s² 2s² 2p⁶ 3s¹...
Feb 08, 2025
Write a balanced equation for the reaction that occurs in each of the following cases. 10 points to best ans!?
Write a balanced equation for each of the following chemical reactions (10 points for the best answer): When potassium metal burns in an atmosphere of chlorine gas. When strontium oxide is added to w...
calculate how many grams of heavy water are required to produce 345.0 mg of ND3(g).?
Lithium nitride reacts with water to produce ammonia and lithium hydroxide according to the following equation: Li3N(s) + 3H2O(l) → NH3(g) + 3LiOH(aq). Heavy water, which contains the isotope deuter...
Feb 08, 2025
6-Carbon alkyne that can exist as diasteromers?
Please draw a six-carbon alkyne that can exist as diastereomers. Ensure that the molecule contains only carbon and hydrogen atoms. Additionally, provide a brief explanation of the structural features...
Predict the formula for a compound made from X+ and Y–.?
I have a couple of questions regarding chemical compounds and electron configurations: 1) I believe the formula for the compound made from X+ and Y– is XY2. Is this correct or incorrect? Could you ple...
Feb 07, 2025
how the hybridization of IF4+ formed?
How is the hybridization of IF4+ formed?