Hòa tan 5,73 gam hỗn hợp X gồm NaH₂PO₄, Na₂HPO₄ và Na₃PO₄ vào nước dư thu được dung dịch Y. Trung hòa hoàn toàn Y cần 75ml dung dịch NaOH 1M, thu được dung dịch Z. Khối lượng kết tủa thu được khi cho Z tác dụng hết với dung dịch AgNO₃ dư là:

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Một số câu hỏi khác có thể bạn quan tâm.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Do you need to have medical qualifications to work at that organisation?

• Find a mistake in the four underlined parts of the sentence and correct it:

  Do you think that the rewards of the volunteer work can enormous?

• Choose the correct sentence which is built from the words and phrases given:

  found / having / one / no / at / home /, / he / left / bad / the / house / a / temper / in /.
  
  

• Choose the correct sentence which is built from the words and phrases given:

  He / accused / of / cheated / having / was / in / his / final / exam / last / week /.
  
  

• Choose the correct sentence which is built from the words and phrases given:

  last / at / she / admitted / told / having / him / the / secret /.
  
  

• Choose the correct sentence which is built from the words and phrases given:

  read / the / having / instruction /, /she / decided / use / to / the / new / camera /.
  
  

• Choose the correct sentence which is built from the words and phrases given:

  she / apologized / for / having / borrowed / my / bicycle / without / asking / permission/.
  
  

• Choose the correct sentence which is built from the words and phrases given:

  she / the / spent / whole / afternoon / chatting / with / her / new / friend/.
  
  

• Choose the correct sentence which is built from the words and phrases given:

  most / people / prefer / spending / money / to / earning / it.
  
  

• Find a mistake in the four underlined parts of the sentence and correct it:

  The fight against illiteracy continued in summer of 2002.