Chemistry Homework Assistance
QuestionAI's chemistry problem solver is a middle school chemistry tutoring tool that summarises key chemical reactions and equations in real-time, featuring a robust learning system to empower even those with a weak foundation in chemistry.
You needn't fret over the elemental properties of the periodic table anymore. Here, you can effortlessly access chemical reactions and reaction principles corresponding to each element. Deductive reasoning from microscopic phenomena to discern the original structure of molecules and atoms is a research technique we staunchly champion.
- 6. What is the final volume of a 400.0 mL gas sample that is subjected to a temperature change from 22.0^circ C to 30.0^circ C and a pressure change from 1 atm to 8.6 atm? square
- __ Sulfur has 16 protons in each atom . Based on this information which of the following also describes an atom of sulfur? A. It has no neutrons. B. It has 16 electrons. C. It has 32 neutrons and 14 electrons. D. It has a total of 48 neutrons and electrons.
- 13. Ozone is sold to block & ultraviolet (UV) radiation in paragraph 2. What is UV radiation, and what is its connection to ozone depletion?
- 1. The equation for the reaction of aqueous phosphoric (V) acid, H_(3)PO_(4), with aqueous sodium hydroxide, NaOH(aq) is shown below. H_(3)PO_(4)(aq)+3NaOH(aq)arrow Na_(3)PO_(4)(aq)+3H_(2)O(l) 25.0cm^3 of a 0.200moldm^-3H_(3)PO_(4)(aq) is titrated with 0.600moldm^-3NaOH(aq) Which statement is correct? A. The end point occurs when 25.00cm^3 of NaOH(aq) has been added. B.The end point occurs when 75.00cm^3 of NaOH(aq) has been added. After titration the final solution contains 0.0150 mol of Na_(3)PO_(4) D. After titration the final solution contains 0.0150 mol of H_(2)O.
- The table shows the relative atomic masses of some common elements. Use this information to work out the relative formula mass of magnesium sulfate. The formula for magnesium sulfate is mathrm(MgSO)_(4) . Enter a number Element & Relative atomic mass hydrogen & 1 carbon & 12 nitrogen & 14 oxygen & 16 sodium & 23 magnesium & 24 phosphorus & 31 sulfur & 32 chlorine & 35.5 calcium & 40 iron & 56