L 01 रासायनिक संयोग का नियम Law of Chemical combination ||Chap 01 | Class 11th

Law Of Chemical Combination ( रासायनिक संयोजन का नियम )|Law Of Conservation Of Mass (द्रव्यमान संरक्षण का नियम)|Law Of Constant Proportion (स्थिर अनुपात का नियम)|Law Of Multiple Proportion (गणित अनुपात का नियम)|Summary (सारांश)

An element forms two oxides of 2.900 g and 2.250 g of these oxides each of found to contain 1.12 L of O_(2) at STP . Which law of chemical combination is illustrated by these data?

One day Vabhav was performing experiments in the science laboratory based on the of chemical combination. Just then his chemistry teacher, Mr. Rajeev, came into the laboratory. Mr. Rajeev told Vaibhav that in an experiment conducted byby a class IX student when 10.6 g of sodium carbonate was reacted with 12.0g of ethanoic acid in a closed flask, then 16.4 g of sodium ethanoate, 4.4 g of carbon dioxide and an unknown mass of substances Y were produced. Mr. Rajeev asked Vaibhav to make use of this information and answer the following questions : (a) Write a word equation for the reaction which takes place on reacting sodium carbonate and ethanoic acid (b) Which is the substance Y which is produced in this reaction ? (c) What mass of substance Y is produced in this reaction ? (d) Which law of chemical combination has been made use of in calculating the mass of substance Y ? State this law (e) What values are displayed by Vaibhav in this eposide ?

9th Chemistry रासायनिक सूत्र कैसे बनाएं ? Chemical Formula Class 9 Tricks | Writing Chemical Formula

When 3.0 g of carbon is burnt in 8.00 g oxygen, 11.00 g of carbon dioxide is produced. What mass of carbon dioxide will be formed when 3.00 g of carbon is burnt in 50.00 g of oxygen? Which law of chemical combination will govern your answer?

The following data are obtained when dinitrogen and dioxygen react to gether to form different compounds: {:(,,"Mass of dinitrogen",,"Mass of dioxygen"),(i.,,14 g,,16 g),(ii.,,14 g,,32 g),(iii.,,28 g,,32 g),(iv.,,28 g,,80 g):} a. Which law of chemical combination is obeyed by the above experimental data? Give its statement. b. Fill in the blanks in the following conversions: I. 1 km= ....... mm= ......pm II. 1 mg= ........ kg= ......... ng III. 1 mL= ........ L= ......... dm^(3)