A 416 g sample of ascorbic acid is titrated with 083 m red
A 4.16 g sample of ascorbic acid is titrated with 0.83 M red dye. What volume of red dye is required to reach the endpoint?Molar mass of red dye =267.08 g/mol; molar mass of ascorbic acid =176.12 g/mol
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The ka of acetic acid is 1.8 x 10^-5. Please show the calculations for the preparation of 100 mL of an acetic acid - sodium acetate pH 5.0 buffer using .10 M acetic acid.
Strychnine, C12H22N2O2, is a weak base. An aqueous solution of 0.0515 M strychnine solution has a pH of 10.48. What is the Kb for strychnine based on these measurements?
calculate the concentrations of h+, oh-, f-, and undissociated hf molecules in 0.10 M hf. Ka for HF is 7.1x10^(-4).
1. a nichrome wire 12 ft long and .011 inch diameter conducts 1.83A when 120v are applied. what is the resistivity of nichrome 2. Copper windings of an electric motor at room temperature of 25 degrees C has resistance of .20(r).
A 4.16 g sample of ascorbic acid is titrated with 0.83 M red dye. What volume of red dye is required to reach the endpoint? Molar mass of red dye =267.08 g/mol; molar mass of ascorbic acid =176.12 g/mol
What is the pH of a solution that is 0.125 M in methylamine (CH3NH2) and 0.175 M in methylamine chloride (CH3NH3Cl)?
Suppose that without a 1k-ohm load an amplifier's output voltage is 5Vpp but when the 1k-ohm load is attached, it drops to 3Vpp. What is the output impedance of the amplifier
A three-phase, wye-connected induction motor is supplied by a three-phase and foursin system with line-to-line voltage of 220V and the impedance of the motor is 6.3+j3.05Ohm per phase.
will 500 mg of Na3C6H5O7 (258.1g/mol) or 500 mg of CaCO3 (100.1g/mol) neutralize more moles of hydronium ion? Assume that both the C6H5O7^(3-) and CO3^(2-) ions become fully protonated.
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