Find the number of moles if you have 10.5g of (HN4)2CO3​

A1.5l container holds p.50 grams of an unknown gas at a pressure of 0.44 atm and a temperature of 50.c what is the molar mass of the unknown gas

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility