a Ca(H2PO4)2 + b (NH2)2CO + c H2O = d (NH4)2HPO4 + f Ca + g C + h O Step 2: Create a System of Equations Create an equation for each element (Ca, H, P, O, N, C) where each term represents the number of atoms of the element ...
(H2PO4)2+7(NH4)2CO3= Ca5(PO4)3(OH) +7(NH4)2HPO4+6H2O +7CO2. Enter the amount of any of the substances to determine the ideal amounts to maximize the theoretical yield of the reaction. To find the limiting and excess reagents...
Naoaki Kuwata3,Yoshiharu Uchimoto4 & Koji Amezawa2* Aiming development of the fast anion conductors, we proposed a new material design using flexible molecular cation as a host cation, and demonstrated it with fluoride ion conduction in NH4MgF3 and (NH4)2MgF4 based materials....
磷酸氢二铵(NH4)2HPO4是一种复合肥,请化学式计算:(1)磷酸氢二铵中氮、氢、磷、氧四种元素的原子个数比为___。(2)磷酸氢二铵中氮和磷两种元素的质量比为___。 免费查看参考答案及解析 题目: (1)在微生物作用的条件下,NH4+经过两步反应被氧化成NO3-。两步反应的能量变化示意图如下:①第一步反应是_...
已知:SO32-+I2+H2O=SO42-+2H++2I-某溶液中可能含有I-、NH4+、Cu2+、SO32-,向... 查看答案 (NH4)2PtCl6晶体受热分解,生成氮气、氯化氢、氯化铵和金属铂。在此分解反应中,氧化产物与还原产物的物质的量... 查看答案 有Fe2+、NO3-、Fe3+、NH4+、H+和H2O六种粒子,分别属于某一反应中的反应物和...
kg-1using the p H values and dissolution reaction constant. The mean ionic activity coefficients were the largest for the(NH_4)_2HPO_4-H_2O system, and were smaller for the(NH_4)_3PO_4-H_2O system. The mean ionic activity coefficients were the smallest for the NH_4H_2PO_4-H_2...
The solubility in the(NH_4)_2HPO_4-H_2O system was the lowest. The mean ionic activity coefficients were calculated for the three phosphate solutions at C = 0.5 mol?kg-1using the p H values and dissolution reaction constant. The mean ionic activity coefficients were the largest for the(...
A.(NH4)2HPO4 B.KNO3 C.NH4NO3 D.Ca3(PO4)2 免费查看参考答案及解析 题目: 学校花圃所种的花卉缺乏氮元素和钾元素。如果只施用一种化肥,则应施用 A.K2CO3 B.NH4H2PO4 C.NH4NO3 D.KNO3 免费查看参考答案及解析 题目: 下列有关物质鉴别方案正确的一组是: ...
解答:解:(NH4)2HPO4中H、O、N、P个元素质量之比:(1×9):(16×4):(14×2):31=9:64:28:31;设质量为x的(NH4)2HPO4和160克NH4NO3中所含的H质量相等,则有: x× 9 134=160g× 4 80,x≈119.1g,故填:=9:64:28:31,119.1g. 点评:本题考查的是根据化学式的计算我,按此此题,可以依据已有的...
【简答题】写出下列酸的共轭碱:H2PO4-,NH4+,HPO42-,HCO3-,H2O,苯酚。 答案: 手机看题 你可能感兴趣的试题 问答题 【计算题】 相对密度为1.01的含3.00%的H2O2溶液2.50mL,与Cl/5KMnO4= 0.200mol/L的KMnO4溶液完全作用,需此浓度的KMnO4溶液多少毫升?已知滴定反应为 答案: 手机看题 问答题 【计算题】 在...