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If sufficient acid is used to react completely with 9.90 grams of Mg, Mg(s) + 2 HCl(aq) → MgCl2(aq) + H2(g) what volume of hydrogen at STP would be produced?
Find out [H3O] and [HF] in 0.500M HF. Then find out these concentrations in a solution that is 0.100M HCL and 0.500 HF
Problem- What are the coefficients of the reactants and products in the balanced equation above? Remember to include H2O(l) and H+(aq) in the appropriate blanks. Your answer should have six terms.
FeCl3 and Mg3(PO4) to give FeSO4 and MgCl2 I need to know what are the : Molecular Equation? Ionic Eq? Net Ionic Eq? What is the name of this type of reaction. Which ions are spectator ions
An ammonia/ammonium buffer solution contains 0.49 M NH3 and 0.62 M NH4+. The Kb value of ammonia is 1.8x10^5. Calculate the pH of this buffer.
Dimethyl hydrazine ignites spontaneously upon contact with dinitrogen tetroxide. If 2 mol of dimethyl hydrazine are mixed with 4 mol of dinitrogen tetroxide, and the reaction an 85% yield, how many moles of N2, H2O and CO2 will be produced?
If a sample of 0.190 grams of KCN is treated with an excess of HCL, calculate the amount of HCN formed, in grams.
the speed of sound in air is 344 ms at room temperature. the lowest frequency of a large organ pipe is 30 s-1 and the
Do I solve this assuming that there are 1.6mL of ethylenediamine in the solution, and somehow use the density of water to calculate?
What is the resulting temperature when 35 g of water at 75C is mixed with 15 g of water at 15C? (The specific heat of water is 4.184 J/g x C.)
Assume also that on a yearly basis the lake is completely mixed, and that the small river flowing into and out of the lake can be neglected as far as acidification is concerned. How many years will it be before the lake will reach a pH of 5.0?
State Lewis dot formulas for each of the following and understand whether they are linear, trigonal, pyramidal, bent or tetrahedral and if the molecule is polar.
Propane gas, C3H8, reacts with oxygen to produce water and carbon dioxide. Propane has a density of 2.02g/L at room temperature. Express the answer as a chemical equation. Identify all of the phases in the answer.
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