Properties of Matter and Their Measurement - Mass and Weight

Pressure is determined as force per unit area of the surface. The SI unit of pressure, Pascal is as shown below:-
1Pa = 1N m^–2
If mass of air at sea level is 1034 g cm^–2, calculate the pressure in Pascal.

What is the SI unit of mass? How is it defined?

A measured temperature on Fahrenheit scale is 200 °F. What will this reading be on Celsius scale?

The density of 3 molal solution of \[\ce{NaOH}\] is 1.110 g mL^–1. Calculate the molarity of the solution.

Volume of a solution changes with change in temperature, then, will the molality of the solution be affected by temperature? Give reason for your answer.

Assertion (A): Combustion of 16 g of methane gives 18 g of water.

Reason (R): In the combustion of methane, water is one of the products.

A vessel contains 1.6 g of dioxygen at STP (273.15K, 1 atm pressure). The gas is now transferred to another vessel at constant temperature, where pressure becomes half of the original pressure. Calculate volume of the new vessel.