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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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From an initial mix of: 2 mol Cl2, 1 mol Br2, 0.5 mol I2, 0.5 mol Cl−, 1 mol Br−, 2 mol I−; the total quantity of I2 present after all possible reactions occur is
0.5 mol I2 and 0.5 mol Cl- will not react with anything; 2 mol I- will react with one mol of Cl2 producing one mol of I2: 2I- + Cl2...
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What volume of ethanol (D = 0.789 g/mL) will have the same mass as 56.85 mL of aluminum (D = 2.70 g/mL)?
The equation for density is d = m/V so 1) from the volume and density of Al calculate the mass of Al 2) this is also the mass ethanol so...
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If 1.7 g of sucrose (C12H22O11) is dissolved in 250.0 mL of ethanol (density = 0.789 g/mL), what is the molality of the resulting solution?
n(C12H22O11) = m(C12H22O11)/M(C12H22O11) = 1.7g / 342g/mol = 0.00497 mol.m(C2H5OH) = V(C2H5OH) × ρ(C2H5OH) = 250.0 mL × 0.789 g/mL = 197.25 g.0.00497 mol – 197.25 gX mol - 1000 gX...
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What mass of CO2 is produced when 25.00 mL sample of ethanol (density = 0.789 g/mL) combusts?
C2H5OH(l) + 3 O2(g) → 2 CO2(g) + 3 H2O(l)
C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l)m(C2H5OH) = density * volume = 0.789 g/mL * 25.00 mL = 19.7 g46 g/mol C2H5OH - 2*44 g/mol CO219.7 g C2H5OH - x...
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Ethanol is a common laboratory solvent and has a density of 0.789 g/mL. What is the mass, in grams, of 135 mL of ethanol?
Solution:m=d*V - a mass of a substanced=0.789 g/mL - the ethanol density.V=135 mL - the volume of ethanol.m=0.789g/mL*135mL=106.515g ~ 106.5g- the mass of ethanol.Answer:106.5g - the mass of ethanol.
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How much grams of water required to pour into 150 cm3 syrup (density of syrup=1,258g/cm3 and procentive concentration 55%) to get the procentive concentration of sucrose 25%?
Volume of syrup=150ml Concentration= 55%How much water added in sryup then it's concentration change 25 %V1C1=V2C2150×55=V2×25V2= 150×55/25= 330 ml or Cm3Water added 330-150= 180 mldensity of water is 1 g/ml...
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How much grams of water required to evaporate from 150cm3 syrup (density of syrup = 1,258g/cm3 and procentive concentration 55%) to get the procentive concentration of sucrose 65%?
Mass of a solution 1 = density*volume = 150cm3*1.258g/cm3 = 188.7 g Mass of sucrose at solution 1 = 0.55*188.7 = 103.8 g Mass of water at solution 1 =...
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The density of ethanol (C2H5OH) is 0.789g/mol. I have a beaker containing 250ml of ethanol. What is the mass of the ethanol?
197 g
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Peanut butter and syrup are complements in consumption. What will happen in the market for syrup if the demand for peanut butter increases?
If the demand for peanut butter increases, the demand and price for syrup will also grow.
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