Question

TY (A) TY D) PVPV, PVR (E) P VR 15 9 .A student pour 165 ml of HC into a beaker. The concentration of the solution is 0.27 M 27. How many moles of HCl are present? write in correct letter) (IL 1000 ml) (A) 47.4 moles (B) 0.0474 moles (C) 575 moles (D) 1.74 moles 10. List one safety rule applicable to any experiment this semester 11. A certain compound has the chemical formula A X, Which statement is TRUE? (write in ener) (A) 2 grams of A are chemically combined with 3 grams of X (B) 2 moles of A are chemically combined with 3 moles of X (C) 2 milliliters of A are chemically combined with 3 milliliters of X (D) 2 atm of A are chemically combined with 3 atm of X (E) all of these are true 12. The atmospheric pressure today is 748 mm Hg. Given that I atm = 760 mm Hg, convert th pressure to units of atmospheres (atm). Answer to three significant figures. SHOW YOUR WORK 13. A certain thermometer reads 22° C. Convert this to units of Kelvin (K). 22° C = K (write in number) K= C + 273 14. A certain buret contains 36.5 mL of hydrogen gas. Express this in liters given 1000

Answer 1

Jdecl laa d PV hRT v volume of motes R Vhverc The anierinot H 0. 287M0 2&7 mol L 165a XID L HCL 165m L 0 165L So, 0.0474mfes. ueer auen nd gb duming my epomest A 2X3 2TmadeA P 748 mm lahn 74 ms 760 0. 984 chm. C 221 (24273 29 K Ct 213