药物康力龙属于国际奥委会宣布禁用的合成类固醇，结构简式如图所示．此药物对肝功能有明显损害作用，过量使用还会产生女子男性化，男子过早秃顶，肝中毒，甚至患肝癌等毒副作用．已知康力龙的相对分子质量为328，在康力龙分子中，w（C）=76.83%，w（H）=9.76%，w（N）=8.85%，w（O）=4.88%．设康力龙的化学式为CqHxNyOz，已知x=32，y=2，z=1，则q=______．
根据相对分子的质量为组成分子的各原子的相对原子质量之和，康力龙的化学式为CqHxNyOz，中x=32，y=2，
z=1，可得：
12q+32+14×2+16=328，则q=21；
故答案为：21．
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| Keep safe in storms In the spring and summer months, thunderstorms (雷雨) are common. 1 In thunderstorms, lightning can strike (击中) people and buildings and is very dangerous. It was reported that a man was struck by lightning when he was making a phone call under a tree. He died at once. You may not know it, but nearly 1,800 thunderstorms are happening at any moment around the world. 2 So what should you do during a lightning storm? Scientists say that a person's chances of being struck by lightning are 1 in 600,000. 3 If you are indoors during a thunderstorm: ＊Stay away from anything that is metal because lightning can come into the house through it. ＊Don't stand near the windows. ＊Don't take a shower or bath. Lightning can travel through water. ＊Never use the phone. 4 If you are caught in a thunderstorm outdoors: ＊ 5 If there's no building around, try to find a low place to stay in. ＊Do not go under a tree because the lightning could hit the tree and travel through the tree to hit you. ＊Never use a cellphone. | |
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