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To find the mass of the precipitate that forms when 100.0mL of 0.887M AgNO3 is added to a Na3PO4 solution, you need to determine the limiting reactant. Since Na3PO4 is in excess, AgNO3 is the limiting reactant. Calculate the moles of AgNO3 using its molarity and volume, then use the mole ratio between AgNO3 and the precipitate to find the moles of the precipitate. Finally, convert the moles of the precipitate to mass using its molar mass.
The reactant aluminum phosphate has a chemical formula AlPO4. There are 4 oxygen atoms in one molecule of aluminum phosphate.
If the step for digesting the precipitate were not followed, it could result in a different amount of limiting reactant. For example, some may get through and the calculated limiting reactant may actually be less than what is in there.
An excess reactant is a reactant in a chemical reaction that is present in a quantity greater than required for the reaction to take place. It is not completely consumed during the reaction, leaving some of it leftover.
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Ammonium solution is a solution containing ammonia, NH3, dissolved in water. It is commonly used in cleaning products, fertilizers, and as a reactant in various chemical reactions. Its pH is typically alkaline, making it useful in neutralizing acids.
The phosphate group that is removed when ATP is converted to ADP is typically used to phosphorylate another molecule in metabolic reactions. This transfer of phosphate groups is essential for energy transfer and storage in cells.
In the reactant aluminum phosphate (AlPO₄), there is one oxygen atom per formula unit. Since there are two formula units of AlPO₄ in the balanced reaction (2AlPO₄), the total number of oxygen atoms is 2 × 4 = 8 oxygen atoms.
The mass of the precipitate obtained after a chemical reaction is used to calculate the percentage of a metal or anion. The concentration of one reactant and the formula of the product are considered as known.
The reactant ion is likely to be Chloride (Cl-) ions. With AgNO3, Cl- ions form a white precipitate of silver chloride (AgCl). When treated with HCl followed by KSCN, the white precipitate of AgCl dissolves in HCl to form a colorless solution, then reacts with KSCN to form a light red color due to the formation of silver thiocyanate (AgSCN).