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Explain Formic acid (HCO2H, Ka = 1.8 × 10-4) is the principal component in the venom of stinging ants. Define what is the molarity of a formic acid solution if 25.00 mL of the formic acid solution needs 49.80 mL of 0.0567 M NaOH to reach the equivalence point?
A quantity of N2 occupies 62.2 L at a partic- ular temperature and pressure. Its density is 0.900 g/L. How many moles of N2 are in the container?
Can metal ions be separated by slowly adding Na2CO3. Assume that for successful separation 99% of the metal ion must be precipitated before the other metal ion begin to precipitate, and assume that no volume change occurs on addition of Na2CO3
explain the formation of line spectrum in the balmer series of hydrogen atom. if the emitted photon has a wavelength of
One of the emission spectral lines for Be3+ has a wavelength of 253.4 nm for an electronic transmission that begins in the state with n = 5
What mass of heptane, C7H16, is required to produce 90.2 kJ of heat at constant pressure from its combustion in excess oxygen?C7H16(l) + 11O2(g) → 7CO2(g) + 8H2O(l)
Dr. Goodchem, while searching for the cure to cancer, found a solution that contained taxol. He found that the the concentration of taxol in ether was 27 g/100 ML ether. He found that the concentration of taxol in water was 0.75 g/100 mL H2O.
Can anyone help me with bromination and why it is more selective than chlorination. We have to use endo and exothermic graphs to explain
A sample of gas is collected over water at a temperature of 35.0C when the barometric pressure reading is 763 torr. What is the partial pressure of the dry gas, given PH2O =42.2 torr?
Is the radial distribution function (RDF) ever negative. Mathematically, why or why not? What does that mean physically
Predict if the following conditions would result in the formation of a preecipitate: a. 0.0025 M Fe3+ at pH 6.00 b. 0.0025 M Ba2+ and a 1.25x10-4 M solution of sodium sulfate c
Neglecting any effects caused by volume changes, would you expect the ionic strength to (1) increase, (2) decrease, or (3) remain essentially unchanged by the addition of iron(III) chloride to
At 699 K, deltaG = -23.25 kJ for the reaction H2(g) + I2(g) --> 2HI(g). Calculate deltaG for this reaction if the reagents are both supplied at 5.0 atm pressure and the product is at 1.00 atm pressure.
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