a, 4,48g

b, $\begin{array}{c}{C}_{M\left(FeS{O}_4\right)}=0,35\left(M\right)\\ C_{M\left(CuS{O}_4\right)}=0,35\left(M\right)\end{array}$

Giải thích các bước giải:

mddCuSO4 = 200 . 1,12 = 224g

→ mCuSO4 = 224 . 10% = 22,4g 

→ nCuSO4 = 22,4 : 160 = 0,14mol

nFe = 3,92 : 56 = 0,07 mol

Fe + CuSO4 → FeSO4 + Cu

nFe < nCuSO4 → Fe phản ứng hết, CuSO4 dư

nCu = nFe = 0,07 mol

→  mCu = 0,07 . 64 = 4,48g

Sau phản ứng thu được dung dịch gồm:

             FeSO4: nFeSO4 = nFe = 0,07 mol

             CuSO4 dư: nCuSO4 p.ứ = nFe = 0,07 mol → nCuSO4 dư = 0,14 - 0,07 = 0,07 mol

$\begin{array}{c}{C}_{M\left(FeS{O}_4\right)}=\frac{0,07}{0,2}=0,35\left(M\right)\\ C_{M\left(CuS{O}_4\right)}=\frac{0,07}{0,2}=0,35\left(M\right)\end{array}$

a, 4,48g

b, $\begin{array}{c}{C}_{M\left(FeS{O}_4\right)}=0,35\left(M\right)\\ C_{M\left(CuS{O}_4\right)}=0,35\left(M\right)\end{array}$

Giải thích các bước giải:

mddCuSO4 = 200 . 1,12 = 224g

→ mCuSO4 = 224 . 10% = 22,4g 

→ nCuSO4 = 22,4 : 160 = 0,14mol

nFe = 3,92 : 56 = 0,07 mol

Fe + CuSO4 → FeSO4 + Cu

nFe < nCuSO4 → Fe phản ứng hết, CuSO4 dư

nCu = nFe = 0,07 mol

→  mCu = 0,07 . 64 = 4,48g

Sau phản ứng thu được dung dịch gồm:

             FeSO4: nFeSO4 = nFe = 0,07 mol

             CuSO4 dư: nCuSO4 p.ứ = nFe = 0,07 mol → nCuSO4 dư = 0,14 - 0,07 = 0,07 mol

$\begin{array}{c}{C}_{M\left(FeS{O}_4\right)}=\frac{0,07}{0,2}=0,35\left(M\right)\\ C_{M\left(CuS{O}_4\right)}=\frac{0,07}{0,2}=0,35\left(M\right)\end{array}$

a, 4,48g

b, $\begin{array}{c}{C}_{M\left(FeS{O}_4\right)}=0,35\left(M\right)\\ C_{M\left(CuS{O}_4\right)}=0,35\left(M\right)\end{array}$

Giải thích các bước giải:

mddCuSO4 = 200 . 1,12 = 224g

→ mCuSO4 = 224 . 10% = 22,4g 

→ nCuSO4 = 22,4 : 160 = 0,14mol

nFe = 3,92 : 56 = 0,07 mol

Fe + CuSO4 → FeSO4 + Cu

nFe < nCuSO4 → Fe phản ứng hết, CuSO4 dư

nCu = nFe = 0,07 mol

→  mCu = 0,07 . 64 = 4,48g

Sau phản ứng thu được dung dịch gồm:

             FeSO4: nFeSO4 = nFe = 0,07 mol

             CuSO4 dư: nCuSO4 p.ứ = nFe = 0,07 mol → nCuSO4 dư = 0,14 - 0,07 = 0,07 mol

$\begin{array}{c}{C}_{M\left(FeS{O}_4\right)}=\frac{0,07}{0,2}=0,35\left(M\right)\\ C_{M\left(CuS{O}_4\right)}=\frac{0,07}{0,2}=0,35\left(M\right)\end{array}$

I hope you're all doing well. Today, Ied to talk to youomething that's been weighing heavily on my mind lately. all know, usually aetty level-headed personlately, I've been feeling incredibly stressed out

The reason for my stress is a big project at workeen consumt of myme and energy. It's a high-pressure situation with tight deadlines and a lot of moving parts, and I'm feeling the weight of it all. I been working long hours and sacrificing my personal life to make sure everything gets done on time.

At first, I was excitedbout the project and felteeks have gone by by, I've startedfeel overwhelmed and uncertain a few setbacks and unexpected that have thrown me off course, andd I'm struggling to find a solution.
alsoeling the pressure of meetingctations of my boss and colleagues. They're counting on me to deliver results, and I don'tet them down. But at the same time, I don't want to sacrifice my own health and well-being in the process. a natural part deliver results, and I don't want to let them down. But at the same time, I don't want to sacrifice my own health and well-being in the process.

I know that stress is a natural part of life, but I also believe that it's important to find healthy ways to manage it. For me, that means prioritizing self-care and finding ways to unwind and recharge outside of work. It also means communicating openly with my colleagues and seeking support when I need it.

I want to thank you all for being such wonderful friends and for always being there for me during tough times. Your kindness and understanding mean more than you know, and your support has helped me through many difficult situations in the past. Please know that I value your friendship deeply and am grateful for your presence in my life.

In closing, I want to encourage all of us to prioritize our mental health and well-being, especially during times of stress. Let's remember to take care of ourselves first so that we can be there for others when they need us most. Thank you again for listening, and I look forward to catching up with each of you soon.