题目

现有m g某气体，它由双原子分子构成，它的摩尔质量为M g·mol-1。若阿伏加德罗常数用NA表示，则： （1）该气体的物质的量为                。 （2）该气体所含原子总数为                 个。 （3）该气体在标准状况下的体积为                L。 （4）该气体溶于水后形成VL溶液，其溶液的物质的量浓度为                  。Turn left at the second crossing if you drive along Center Street north to south. If you come by bus, you can get off(下车) at the B. Street Bus Station. You can’t miss it!Please come to the black door. Our party will be on the farm behind the house. Put your gifts into the small tent on the grass(草地). Remember : This is a surprise party, so do not let him know anything about it by the party.We will have a buffet lunch(自助餐) and later all kinds of interesting games for everybody! Music Show at 4 P.M.Bring your guitars, violins, drums and anything that makes sound!Please let me know by July 4th if you can make it.1.There is a birthday party for Scott on _________.A. Saturday, July 6thB. Sunday, July 6thC. Saturday, June 4thD. Sunday, June 4th2.They will have the party _________.A. at the B. Street Stop B. on Center StreetC. in the dining hall D. on the farm3.Scott’s parents don’t let him know about the party because_________. A. they may be late for the busB. they want to give him a surpriseC. the music show is not coolD. the farm is very dirty4.We know that people can _______ at the party.A. watch a movie B. sing and danceC. grow apples D. sell gifts5.Which of the following is true(下面哪一个是正确的)?A. Scott is six years old now. B. Scott’s house is near the bus station.C. All of them can’t find the black door. D. People can enjoy the party for two days.