The Elements X, Y Combine to Form Two Compounds as XY and X2Y. Find the Atomic Weight of X and Y, When the Weight of 0.1 Moles of XY is 10g and 0.05 Moles of X2Y is 9g.
Which One will have Maximum Numbers of Water Molecules?
A Measured Temperature on the Fahrenheit Scale is 200 °F. What will This Reading be on the Celsius Scale?
Which of the Following one has the Largest Number of Atoms?
Calculate the Number of Gram Molecules of Oxygen in 6.02 × 1024 CO Molecules.
How Many ml of Water Must be Added to 200 ml of .65 M HCl to Further Dilute the Solution to 0.20 M?
How Many Grams of Solute is Needed to Prepare 1.0 L of 1 M CaCl2.6H2O?
The Mass of 2.044 × 1023 Carbon Atoms is Given by_____
If the Density of Oxygen (O2) gas at NTP is 1.429g/L, Calculate the Standard Molar Volume of the Oxygen Gas.
Recently the Unit of Atomic Mass “amu” is replaced by______
Under the Same Conditions, Nitrogen and Oxygen are Taken in the Same Mass. The Ratio of Their Volumes will be _____
Which one will have maximum numbers of water molecules?
Pressure has the same dimension as ____________
Boron exists as two stable isotopes; 10B(19%) and 11B(81%). Find out the average atomic weight of boron in the periodic table
Which of the following is a pair of physical and chemical property respectively of a substance