im french not
not comfortable with English
i did the test sn purity i prepare 2 cups with 500ml water each
weigh 2,5gof sn
dissolve the 2,5g of sn in cup1 then take 1ml from cup1 and add it to cup 2 now we have 2,5g/500mLor 5g/L in cup1 and 10mg/lLin cup 2
we need the concentration of nitrite in cup2
the thing is i did the test using the cup 1 where i dissolve 2,5g and the test result gave me 10mg/L and did the test with cup 2 where i transfer 1ml from cup 2 it got 5mg/L
i was supposed to have 10mg/L WITH CUP 2 not with cup 1
can you help me please?
not comfortable with English
i did the test sn purity i prepare 2 cups with 500ml water each
weigh 2,5gof sn
dissolve the 2,5g of sn in cup1 then take 1ml from cup1 and add it to cup 2 now we have 2,5g/500mLor 5g/L in cup1 and 10mg/lLin cup 2
we need the concentration of nitrite in cup2
the thing is i did the test using the cup 1 where i dissolve 2,5g and the test result gave me 10mg/L and did the test with cup 2 where i transfer 1ml from cup 2 it got 5mg/L
i was supposed to have 10mg/L WITH CUP 2 not with cup 1
can you help me please?
