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6 g of dolid magnesium sulphate, MgSO4 is added into a beaker containing 200 dm3 of water. calculate the concentration in g dm-3, for the solution produced
Molar Mass of MgSO4 = 120.366= 6/120 = 0.05MConcentration = m/Dm3= 0.05/200= 0.00025mol/dm3or 0.03g/dm3
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Why must you pour KIO[sub]3[/sub] into a beaker from the volumetric flask instead directly into the beaker oh NaHSO[sub]3[/sub].
Probably, you mean the clock reaction. In this reaction amount of KIO3 is crucial. So, we need firstly to pour solution of KIO3 into the volumetric flask and then, well-known...
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0.4 L of a 8 M solution are poured into a beaker. 0.5 L of water is added to the beaker what is the new molarity?
The initial solution contains:n = M × Vwhere n - number of moles, M - molarity, V - volume.From here:n = 8 M × 0.4 L = 3.2 molThe final...
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Calculate the concentration of OH- ions when reacting with 100 cm3 of KOH solution, concentration 0.09 mol / dm3 with 120 cm3 of H2SO4 solution with concentration 0.1 mol / dm3!
The reaction given:2KOH + H2SO4 = K2SO4 + 2H2OAs 1 L = 1dm3 and 1 ml = 1 cm3, the number of moles of the reactants equals:n(KOH) = M × V = 0.09...
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A solution of salt solution is made by mixing 6.75 g of NaCl(s) in enough water to make exactly 750 mL of solution. What is the W/V percentage concentration of the solution?
Weight/Volume Percentage Concentration is a measurement of the concentration of a solution. Solubilities are sometimes given in units of grams of solute per 100 mL of water, that is, as...
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What is the concentration (in mol / dm3) of KCl in the solution formed by mixing 25 mL of KCl solution, 0.100 M concentration with 50 mL of KCl solution, 0.100 M concentration?
The concentration of both solutions is equal. Therefore, we will get 75 ml of 0.100 M KCl solution.0.100 M = 0.100 mol/dm3.
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what will be the concentration if 0.7 g NaCl is poured in 0.3 liter destilled water?
CM = n / Vn = m / MM (NaCl) = 58.44 g/moln (NaCl) = 0.7 / 58.44 = 0.012 molCM (NaCl) = 0.012 / 0.3 = 0.04 M
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Beaker A contains a strip of nickel in aluminum sulfate and beaker B contains a strip of aluminum in a solution of nickel sulfate. What happens to each beaker?
According to reactivity series of metals, aluminium is more active. Hence, aluminium will substitute nickel from its salt, while nickel will not substitute aluminium. The answer - nothing will happen...
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What is the most appropriate piece of apparatus for measuring out exactly 25.00 mL of solution? a)Measuring cylinder b)Erlenmeyer flask c)Volumetric pipet d)Beaker
Answer: c) Volumetric pipet.Explanation:Cylinders, beakers and flasks provide only approximate level of accuracy when measuring liquid. Volumetric pipettes (flasks, cylinders) are calibrated to a contain a specific volume of liquid.Source:...
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