A solution is prepare using 45.2 g of an unknown (nonelectrolyte) dissolved in 476.4 g of water. The freezing point depression of the solution compared to water is measured to be 1.87°C. What is the molar mass of the unknown (in g/mol)?
Some possibly useful constants for water are K= 1.86°C/m and Kb = 0.512°C/m.
Enter your value using three significant figures.

1. according to the article, the chinese government has tried to control its people in all of the following ways except: question 1 options: create and spread propaganda in the media censorship of the media allowing people to create their own social media deleting people's social media posts without their permission question 2 (1 point) 2. when a government has total control over its citizens, including the media, it is a of government question 2 options: constitutional monarchy parliamentary democracy autocracy presidential democracy question 3 (1 point) according to the article, "social credit" is question 3 options: an experiment to people talk on-line a farming experiment that hurt people under mao ze dong using someone else's data from the internet, to give or take away things such as the right to buy an airline ticket a credit you get in china for having friends in real life, and not just on social media question 4 (1 point) china wants to take control over social media in which other region? question 4 options: taiwan chile japan hong kong

What volume of a 0.0606 m solution of strontium bromide is needed to obtain 0.340 mol of the compound? question 42 options: a)5.61 l b) 3.4 l c) 600 ml d) 1 l e) 178 ml

What is the oxidation state of each individual carbon atom in c2o42−?