Calculations in Chemistry

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06/03/2026

Calculate the percentage of nitrogen in NH₄NO₃.
(N=14, H=1, O=16)

12/02/2026

Calculate the number of moles in 17.6 g of CO2

09/02/2026

Calculate the mass in grams in 0.95mol of NaHCO3

06/02/2026

Calculate the amount in moles, present in 20g of CaCO3

10/11/2025

what is the molar mass of NaHCO3?

09/06/2025

What is the relationship between Molar concentration and Mass concentration

23/05/2025

50g of Na2CO3 is dissolved in water and the solution is made up to 250ml. Fine the molar concentration of the solution.

22/05/2025

What is the mass concentration of KHSO4 of 4.9g in 100cm3 of solution

13/05/2025

How many atoms are present in 8.0g of Na?

06/05/2025

Why is the standard solution of NaOH cannot be made by measuring a given mass and making it up to the required volume of the solution?

03/05/2025

What mass of NaCl will be needed to prepare 0.54g/dm3 of a solution with volume 25cm3

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