Chemical Forums

Chemistry Forums for Students => High School Chemistry Forum => Topic started by: 060108 on April 14, 2009, 12:57:48 PM

Title: chemistry help (freezing and boiling points)
Post by: 060108 on April 14, 2009, 12:57:48 PM
A rocksalt (NaCl), ice , and water mixture is used to cool milk and cream to make homemade ice cream. how many grams of rocksalt must be added to water to lower the freezing point 10.0 degrees celcius?

i cannot find out how i am supposed to figure out the grams when i need mol to figure it out and in order to get mol i need grams  ???
Title: Re: chemistry help (freezing and boiling points)
Post by: Borek on April 14, 2009, 02:26:45 PM
What is dependence between mass, molar mass and number of moles?