How many grams of chromium metal are plated out when a constant current of 8.00 A is passed through an aqueous solution containing Cr 3+ ions for 40.0 minutes?

One similarity and one difference between an element and a mixture of elements

What does it mean for something to be dissolved in watera- it is submerged in water moleculesb-it is stirred in the water moleculesc- it is surrounded by water molecules d-it has water molecules added to it

Achemist needs to prepare a buffer solution of ph 8.80. what molarity of nh3 (pkb = 4.75) is required to produce the buffer solution if the (nh4)2so4 in the solution is 1.8 m?