General Chemistry Answers

Briefly explain the physical and chemical methods of determining molecular weight/molar mass of high molecular compound with examples?

Write the word equation, skeletal and balanced equations of  Solid potassium chlorate when heated produces solid potassium chloride and oxygen gas.

What are the molar concentrations of the ions in 0.20 mol/L Al2(SO4)3?

How many kilograms of iron are present in 115 kg

kg of hematite?

In the following reaction, 5.96 g of Ammonia (NH₃) reacts completely with 180.00g Carbon dioxide (CO₂). Which is the limiting reagent?

Given: RMM of N=14; RMM of  H=1; RMM of C=12; RMM of O=16. 

                                       2 NH₃  + CO₂ → CN₂OH₄ + H₂O     

[L]

The pOH of a 0.0570 M solution of HCl is

The pH of a solution is 3.72. What is the OH⁻ concentration in the solution?

If an ideal gas law has apressure of 7.19atm a temperature of 99.8 celcius a volume of 64.87centimetre cube. find the number of moles

At STP a certain mass of gas occupies a volume of 800 cm cube find the temperature at which the gas occupy 900 cm cube and has a pressure of 675mmhg

The study of chemistry deals with all of the following EXCEPT: A. the energy changes that occur with matter B. changes in matter C. matter D. velocity