地沟油中含有一种强烈致癌物黄曲霉素(C17H14O6),长期食用会引起消

地沟油中含有一种强烈致癌物黄曲霉素(C17H14O6),长期食用会引起消化道癌变请回答

  (1)黄曲霉素的相对分子质量为              

  (2)黄曲霉素中碳、氢、氧三种元素的原子个数比为           

315.7g黄曲霉素中含有多少克氧元素?

答案

相关题目

She changed so much that I could hardly _______ her when we met again after a s
She changed so much that I could hardly _______ her when we met again after a separation of 20 years.      A. recognize                B. know                  C
回答下列与生物学实验有关的问题: (1)某棉农获知脱落酸可
回答下列与生物学实验有关的问题: (1)某棉农获知脱落酸可以促进叶片脱落的原理后,采收前在棉田喷施了一定量的脱落酸,试图除去棉花叶片便于机
It was the man______ on the bed with his eyes open who_____the book open on the
It was the man______ on the bed with his eyes open who_____the book open on the desk just now. A. lain; lay    B.lying ;laid     C.lay; lay     D.lying ;lied
已知椭圆经过点,且离心率为. (1)求椭圆的方程; (2)设
已知椭圆经过点,且离心率为. (1)求椭圆的方程; (2)设点在轴上的射影为点,过点的直线与椭圆相交于、两点,且,求直线的方程.
Benjamin West, the father of American painting, showed his talent for art when
Benjamin West, the father of American painting, showed his talent for art when he was only six years of age. But he did not know about brushes before a visitor told him he needed one. In those days,
张先生是某跨国公司中国分公司业务代表,常年在各国奔走
张先生是某跨国公司中国分公司业务代表,常年在各国奔走。张先生在国内与一家相关公司谈成一笔业务,合同金额6000万元人民币。对方要支付6000万元
一个骰子连续投2 次,点数和为4 的概率    ▲    .
一个骰子连续投2 次,点数和为4 的概率    ▲    .
在透明塑料袋中滴入几滴酒精,将袋挤瘪,排尽袋中空气后
在透明塑料袋中滴入几滴酒精,将袋挤瘪,排尽袋中空气后把口扎紧,然后放入80℃以上的热水中,过一会儿,塑料袋鼓起;从热水中拿出塑料袋,过一

最新题目