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What is the resulting concentration of Na When 70 milliliter of 3 molar Na2CO3 is added to 30 milliliters of 1 molar NaHCO3?
Wiki User
∙ 13y ago
You have .07 Liters of 3 moles/Liter of Na2CO3. So if you do .07*3*2 (you multiply by two because there are TWO Na+ ions in Na2CO3) you get .42 moles of Na+. Then you do the same with NaHCO3. So, .03*1 is equal to .03 moles of Na+. Adding .42 with .03 will give you .45, the number of moles of Na+ of the whole solution. Since you are looking for concentration (which is moles if solute divided by Liters of solution), you must divide by .1 Liters (you get that by adding .07 and .03 of the two liquids that compose the solution) to get 4.5 Molar. That is the answer!
Wiki User
∙ 13y ago
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When 2.61 of solid Na2CO3 is dissolved is sufficient water to make 250 mL of solution the concentration of Na2CO3 is?
You need to mention the unit for 2,61.
What is the weight in grams of a 0.5 N Na2CO3 used in determining the concentration of unknown HCl solution?
A 0.5N Na2CO3 used in determining the concentration of an unknown HCl solution has a weight of 1.06 grams. To find the weight, you need to first find out how many moles there are by calculating molarity times volume.
How many ml of a 0.60m hcl soloution are needed to neutralize 2.5g of sodium carabonate?
Balanced equation first, last and always! Na2CO3 + 2HCl - > 2NaCl + CO2 + H2O 2.5 g Na2CO3 ( 1 mole Na2CO3/105.99 g)(2 mole HCl/1 mole Na2CO3) 0.04717 moles HCl -------------------------Now, Molarity = moles of solute/liters of solution or, for our purposes liters of solution = moles of solute/Molarity Liters HCl = 0.04717 moles HCl/0.60 M HCl = 0.0786 liters (1000 milliliters/1 liter) = 78. 6 milliliters HCl solution needed
What is the balanced equation for sodium carbonate resulting in sodium oxide plus carbon dioxide?
1 Na2CO3 --Δ--> 1 Na2O + 1CO2
How are 0.50m Na2CO3 and 0.50M Na2CO3 different?
difference between 0.50mol na2co3 anf 0.50 M of na2co3
Sodium carbonate equation?
The chemical formula of sodium carbonate is Na2CO3. A solution hasn't a formula.
Chemical formula of washing soda?
the chemical formula of washing soda is Na2CO3 (Sodium carbonate).
What is the AR or MR value of Co2 and NA2CO3?
ar of na2co3
What is the balanced equation of the reactants MnSO4 and Na2CO3?
MnSO4+Na2CO3
How many grams are in 0.577 mol Na2CO3?
1 mole Na2CO3 = 105.98844g 0.577mol x 105.98844g/mol = 61.2g Na2CO3
How many moles of washing soda are there in 5g?
Washing soda is sodium carbonate, Na2CO3. Using the atomic weights from the periodic table and the subscripts in the formula, the molar mass of Na2CO3 = 106g/mol. 5g Na2CO3 x (1mol Na2CO3/106g/mol) = 0.05mol Na2CO3
What is the KB of Na2CO3?
The Kb of Na2CO3 is equal to 2.1 x 10^-4. Carbonate ion is the ion that results from the dissociation of Na2CO3.
