Question 9 (16 marks) In a laboratory, an experiment was carried out to demonstrate the chemical reaction between
nitric acid and sodium hydrogencarbonate. The molecular equation can be written as follows.
I
HNO3(aq) + NaHCO3(s) - NaNO3(aq) + CO2(g) + H2O(1)

Calculate the volume of CO2(g) that is produced at 25 °C and 1.00 atm when 10.0 mL of 2.00
mol/L HNO3 reacts with 1.00 g NaHCO3 (molar mass = 84.006 g/mol). Clearly show your
working, including a statement about the mole ratios of the substances in the reaction, and state
the unit.​

What is driving behind plate tectonics (plate movment)? a) gravity only b) inertia c) convection and gravity d) the sun theres no option for science so i picked chemistry. plz

The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н,о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.

Which formula can be used to calculate the molar mass of hydrogen peroxide