Popular Questions
- What is the mass of precipitate formed when 50 mL of 16.9 % solution of AgNO3 is mixed with 50 mL of 5.8% NaCI solution?
- The number of atoms in 0.1 mol of a triatomic gas is : [Na=6.02*(10^23) mol^-1]
- What volume of oxygen gas (O2) measured at 0 degree c and 1 atm, is needed to burn completely 1L of propane gas (C3H8) measured un..
- The drug which is used for treating AIDS victims is
- Number of moles of MnO4 required to oxidize one mole of ferrous oxalate completely in acidic medium will be :
- Volume occupied by one molecule of water (density = 1 g cm^-3) is
- An element, X has the following isotopic composition: 200X:90%, 190X:8.0%, 202X:2.0%
- The under of moles of KMnO4 reduced by one of KI in alkaline medium is
- The maximum number of molecules is present in
- How many significant digits are there in 0.5?
- If Na is avogadros number then number of valence electrons in 4.2 g of nitride icons N^3_ is
- The number of oxygen atoms 4.4g of CO2 is
- The same amount of zinc is treated separately with excess of sulphuric acid and excess of solution hydroxide. What will be the rat..
- 2.76 g of silver carbonate on being strongly heated yields a residue weighing
- The molecular weight of O2 and SO2 and 32 and 64 respectively. At 15 degree C and 150 mm Hg pressure, one litre of O2 contains N m..
- Boron has two stable isotopes, 10 B (19%) and 11 B(18%). Average atomic weight for boron in the periodic table is
- The number of oxygen atoms in 4.4 g of CO2 is
