Some Basic Conc...

A compound was found to contain 5.37% nitrogen. What is the minimum molecular weight of compound?

A chemical equation is balanced in accordance with the law of

A sample of $$CaCO_3$$ has $$Ca=40\%,\,C=12\%$$ and $$O=48\%$$. If the law of constant proportion is true then the weight of $$Ca$$ in $$16\;g$$ of $$CaCO_3$$ made from different processes will be

A sample of $$CaCO_3$$ has Ca =40%, C = 12% and O = 48% by mass. If the law of constant proportion is true then the weight of Ca in 16g of $$CaCO_3$$ made from different processes will be -

Three containers A, B and C of equal volume, contain $$N_2$$, $$NO_2$$ and $$CO_2$$ respectively, at the same temperature and pressure. The ascending order of their masses is:

A sugar solution contains $$15\%$$ sugar by weight. When the solution is heated, $$40\%$$ sugar is left in the solution. The amount of water which is disappeared is:

One mole of any substance contains $$6.023\times10^{23}$$ particles. It was determined by

Which atom contains exactly 15 neutrons?

In a chemical reaction, when 14 g of sodium carbonate reacted with 10g of acetic acid (ethanoic acid), then it was observed that, 16.67 g of sodium acetate solution in water and 7.33 g of carbon dioxide were produced. Which law does this depicts?

How much MgO is obtained on heating 5 gm of $$\displaystyle \left ( MgCO_{3} \right )$$ Magnesium carbonate?