Pure platinum is too soft to be used in jewelry because it scratches easily. To increase the hardness so that it can be used in jewelry, platinum is combined with other metals to form an alloy. To determine the amount of platinum in an alloy, a 7.637 g sample of an alloy containing only platinum and cobalt is reacted with excess nitric acid to form 1.31 g of cobalt(II) nitrate. Calculate the mass percent of platinum in the alloy.
Answers: 2
Other questions on the subject: Chemistry
Chemistry, 22.06.2019 05:00, hjamya17
In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?
Answers: 1
Chemistry, 22.06.2019 12:30, hala201490
Place the elements below in order of decreasing ionization energy. aluminum(al) chlorine(cl) magnesium (mg) sulfur(s)
Answers: 1
Chemistry, 22.06.2019 13:00, aleilyg2005
If two objects at different te, peraure are in contact with each other what happens to their temperature
Answers: 1
Chemistry, 22.06.2019 19:20, choiboiqg5755
The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n
Answers: 1
Do you know the correct answer?
Pure platinum is too soft to be used in jewelry because it scratches easily. To increase the hardnes...
Questions in other subjects:
Computers and Technology, 07.11.2019 09:31
Mathematics, 07.11.2019 09:31
Mathematics, 07.11.2019 09:31
Mathematics, 07.11.2019 09:31
Mathematics, 07.11.2019 09:31
English, 07.11.2019 09:31
