5.499 g of NaCl is formed if 5.00 g of pure Na2CO3 is treated with HCl solution
The equation of the reaction is;
2HCl + Na2CO3 ----->2NaCl + H2O + CO2
Molar mass of Na2CO3 = 2(23) + 12 + 3(16) = 46 + 12 +48 = 106 g/mol
The number of moles of Na2CO3 in 5.00 g of pure Na2CO3 = 5g/106 g/mol
= 0.047 moles
From the reaction equation;
1 mole of Na2CO3 yields 2 moles of NaCl
0.047 moles of Na2CO3 yields 0.047 × 2/1 = 0.094 moles
Molar mass of NaCl = 23 + 35.5 = 58.5 g/mol
Mass of NaCl = 0.094 moles × 58.5 g/mol
Mass of NaCl = 5.499 g of NaCl
Learn more: brainly.com/question/9743981
Answer:
sound waves is what causes you and thing with be able to hears sounds and things
25% of 20
%=100
25/100 x 20
1/4 x 20
The answer is equal to 5
Answer:
<h3>The answer is 1.30288 × 10³ g</h3>
Explanation:
The mass of a substance when given the density and volume can be found by using the formula
<h3>mass = Density × volume</h3>
From the question
volume = 95.8mL
density = 13.6g/mL
We have
mass = 13.6 × 95.8 = 1302.88
We have the final answer as
<h3>1.30288 × 10³ g</h3>
Hope this helps you
They are all examples of chemical formulas