125怎麼算

plus o辣 1.0 kg concen Cacid (98凶 日SO04 by mass誰 和 the 過 128。 Hydrogen peroxide 1S used as a cleansing agent in the freat- 呈卻 ma ent Of cuts and abraslons for several] reasonsS. It is an Oxidiz- : e Ing agent that can_ directly kill many microorganisms: 1 全 decomposes on contact With blood, releasing elemental oxy- d. gen gas (which inhibits the growth of anaerobic microorgan- 1Sms); and it foams on contact with blood, which provides a 1 診 1 ed in | cleansing action. In the laboratory, small duantities of hydro- cop as gen peroxlde can be prepared by the action of an acid on an 兒 時 alkaline earth metal peroxide, such as barium peroxide: We Baoy() + H2 What mass of hydrogen peroxide should result when 1.50 g barium peroxide is treated with 88.0 mL hydrochloric acid solution containing 0.0272 g HCl per mL? What mass of

為什麼要乘1.6*10^-19

說ee > g 時 5 人半 (( )看 does DnOt adeqduately predict 全 beettrum # electron(s) for elements otherth 及 和 an (D) it does not adequately pe hydrogem. e Qizati St-energy-level Qh enher fr 品y electrons foreleme, 銳is Sy otthe h ydro gen. hents fore SentS other taw or natorwYn te 畫GSh% state ? The Rydber (A) 7.27x 10

第九題跟的十二題，答案是E跟A 幫忙解一下，看不太懂😅 感恩

生話點01 9) The density of silver is 10.5 g/cm?. A piece of silver that occupies avolume of 63.l cm3 would haveamass of 8- A) .445 B) 23.6 C) 112 D) 2.25 E) 663 10) Which species is an isotope of 39Cl? A) 39Ar B) 36Cl- C) 80Br D) 35452- E) 40Ar+ 11) Which pair of elements below should be the most similar in chemical properties? A) CandO B) Band As C) Cs and He D) Kand Kr E)Iand Br 12) The gold foil experiment performed in Rutherford's lab A) led to the discovery of the atomic nucleus B) utilized the deflection of beta particles by gold foil C) proved the law of multiple proportions D) was the basis for Thomson's model of the atom E) confirmed the plum-pudding model of the atom 人 人全全y有1 10) 11) 12)

求解55感謝

1 1 WWWVeS livelengths on the 2 GIuerofi>入101m. Galculate he elierpv 1 0X 10 fm radio Waves in units of kilojoules per mole Of 13dio waves. Consider 了出at the bond energy ofacarbone_carbon aingle bond found in 生 說 organic compounds is 347 kJ/mol. Woujld X Tays and/or radio Waves be able to disrupt OTganlc cormpounds by breaking carbon-carbon single bonds? SS。 The Work function of an element is the energy required to 56. ITermove an electron from the surface of the solid element. The Work function for lithium is 279.7 kJ/mol (that 1s, 1 takes 279.7 kKJ of energy to remove one mole of electrons from one mole of Li atoms on the surface ofLi metal). What is the max- lmum wavelength oflight that can remove an electron from an atormn on ffhe surface of lithium metal? It takes 208.4 kJ of energy to remove lmole ofelectrons from an atom on 負e surface of rubidium metal. How much energy does it tfake to remove a single electron from an atom on the surface of solid rubidium? What is the maximum wavelength 說人計生 加計

求解感謝

廁 0 同 ee 1 中斑 how many electrTOS QCCUuDy /7 aftomi OTpjfgle? | hoW many electronS occupy / ic 全ba mow many electrons have spin 1 三 + B守oulmd State of element ) hos any eleetronS have且一5as one of their dquantum DUIIIDC 加了、)- yy electrons have《 三 3as one of their quantum Y Ons have 7 三 1aS one ot thelr quantum