Question 4 What volume of concentrated (18 M) hydrochloric acid is needed to prepare 20.0 L of 3.0 M HCI ?
O 0.267
3.33 L.
O 120L
0 1.20 L.
O 0.333L.

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

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?

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.