Carl must find the volume of a small toy dinosaur. First, he moves the plastic collar around the top of the graduated cylinder to the 50 ml line so it will help him measure the water he is about to add. He then fills the graduated cylinder with 50 ml of water. Then, Carl drops the dinosaur inside the graduated cylinder, and some water splashes out on the lab table. After this, Carl reads the new volume of the water and dinosaur at the top of the meniscus and determines that the volume is 65 ml. He then raises his hand and reports to the teacher that he has determined the volume of the toy dinosaur and it is 65 ml.

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.

If a straight-chain hydrocarbon is a gas at room temperature, how many carbon atoms will it have? a. 6 carbon atoms b. 12 carbon atoms c. 24 carbon atoms d. 3 carbon atoms

Name a brittle metal , which is used to galvanize iron