Question
Film Photographic film contains silver bromide in gelatin. Once exposed, some of the silver bromide decomposes, producing fine grains of silver. The unexposed silver bromide is removed by treating the film with sodium thiosulfate. Soluble sodium silver thiosulfate $\left(\mathrm{Na}_{3} \mathrm{Ag}\left(\mathrm{S}_{2} \mathrm{O}_{3}\right)_{2}\right)$ is produced.$\mathrm{AgBr}(\mathrm{s})+2 \mathrm{Na}_{2} \mathrm{S}_{2} \mathrm{O}_{3}(\mathrm{aq}) \rightarrow$$\mathrm{Na}_{3} \mathrm{Ag}\left(\mathrm{S}_{2} \mathrm{O}_{3}\right)_{2}(\mathrm{aq})+\mathrm{NaBr}(\mathrm{aq})$Determine the mass of Nas Ag(S_ $_{2} \mathrm{O}_{3} )_{2}$ produced if0.275 $\mathrm{g}$ of AgBr is removed.
Step 1
We do this by dividing the given mass by the molar mass of AgBr. The molar mass of AgBr is 187.77 g/mol. So, we have: \[0.275 \, \text{g} \, \text{AgBr} \times \frac{1 \, \text{mol} \, \text{AgBr}}{187.77 \, \text{g} \, \text{AgBr}}\] Show more…
Show all steps
Your feedback will help us improve your experience
Ronald Prasad and 88 other Chemistry 101 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Film Photographic film contains silver bromide in gelatin. Once exposed, some of the silver bromide decomposes, producing fine grains of silver. The unexposed silver bromide is removed by treating the film with sodium thiosulfate. Soluble sodium silver thiosulfate $\left(\mathrm{Na}_{3} \mathrm{Ag}\left(\mathrm{S}_{2} \mathrm{O}_{3}\right)_{2}\right)$ is produced. \begin{equation} \mathrm{AgBr}(\mathrm{s})+2 \mathrm{Na}_{2} \mathrm{S}_{2} \mathrm{O}_{3}(\mathrm{aq}) \rightarrow \end{equation} \begin{equation} \quad\quad\quad\quad\quad\quad\quad\mathrm{Na}_{3} \mathrm{Ag}\left(\mathrm{S}_{2} \mathrm{O}_{3}\right)_{2}(\mathrm{aq})+\mathrm{NaBr}(\mathrm{aq}) \end{equation} Determine the mass of $\mathrm{Na}_{3} \mathrm{Ag}\left(\mathrm{S}_{2} \mathrm{O}_{3}\right)_{2}$ produced if 0.275 $\mathrm{g}$ of $\mathrm{AgBr}$ is removed.
During the developing process of black-and-white film, silver bromide is removed from photographic film by the fixer. The major component of the fixer is sodium thiosulfate. The net ionic equation for the reaction is $$ \mathrm{AgBr}(s)+2 \mathrm{~S}_{2} \mathrm{O}_{3}{ }^{2-}(a q) \longrightarrow \mathrm{Ag}\left(\mathrm{S}_{2} \mathrm{O}_{3}\right)_{2}{ }^{3-}(a q)+\mathrm{Br}^{-}(a q) $$ What mass of $\mathrm{AgBr}$ can be dissolved by $1.00 \mathrm{~L}$ of $0.200 \mathrm{M}$ $\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3} ?$ (Assume the reaction goes to completion.)
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD