Question
What does the field of stoichiometry focus on in
chemistry?Solution
Stoichiometry involves the quantitative relationships between reactants and products in a chemical reaction. Based on the law of conservation of mass, it helps in predicting the amounts of substances consumed and formed in reactions.
Pipe ‘A’ and pipe ‘B’ can fill a cistern in 20 minutes and 10 minutes respectively. Pipe ‘C’ alone can empty the cistern in 12 minutes. If a...
Pipe ‘A’ can fill a 240-litre tank in 15 hours. If pipe ‘A’ is 25% more efficient than pipe ‘C’ whereas pipe ‘B’ is 50% more efficient t...
Two pipes, X and Y, can individually fill a tank in 50 minutes and 25 minutes respectively. If both pipes are opened simultaneously, after how much time...
Pipe L can empty the tank which is 45% filled in 9 hours. The time taken by pipe K and J together to fill an empty tank completely in 7.5 hours. Pipe J ...
Pipe ‘M’ and pipe ‘N’ can fill a tank alone in 20 hours and 40 hours, respectively. If both pipes are opened together and pipe ‘M’ is close...
Tap P can fill the tank in 5 hours and Tap Q can empty it in 7(1/2) hours. Tap P starts filling and they opened for 1 hour each alternatively. In what t...
Pipe A can fill a tank in 12 hours, and Pipe B can fill it in 15 hours. Pipe C can empty the full tank in 20 hours. If all three pipes are opened togeth...
An inlet pipe can fill an empty tank in 40 minutes whereas an outlet pipe can empty the fully filled tank in 80 minutes. Find the time taken by both the...
Two pipes G and H can fill a cistern in 40 minutes and 50 minutes respectively. If both are opened together, after how many minutes should pipe G be shu...
A tank can be filled by pipe A in 12 hours and by pipe B in 18 hours. A waste pipe C can empty the full tank in 36 hours. If all three pipes are opened ...
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