Ineed
given the table below, what is the chemical formula for a compound between na and the sulfate ion so4 -2?
a. nitrate ion no3 -1
b. phosphate po4 -3
c. sulfate so4 -2
d. acetate c2h3o2 -1
e. ammonium nh4 +1
f. chromate cro4 -2
g. carbonate co3 -2
h. dichromate cr2o7 -2
i. permanganate mno4 -1
j. sulfite so3 -2

How many grams of n2h4 will be consumed by 23 g of n2o4

Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)

4. absorption has the highest risk of overdose due to increased potency. a. rectal b. oral c. transdermal d. intranasal