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Equal volumes of 1 x 10-5 M solutions of Cd2+ and CO32- ions are mixed in one flask and equal volumes of 1 x 10-5 M solutions of Ag+ and CrO42- ions are mixed in a second. Which substances precipitate given that the Ksp values of CdCO3 and Ag2CrO4 are 5.2 x 10-12 and 1.1 x 10-12 respectively?
A. CdCO3 onlyB. Ag2CrO4 onlyC. Impossible to tell without further informationD. Neither CdCO3 nor Ag2CrO4E. Both CdCO3 and Ag2CrO4
Rhodium has a density of 12.45 g/cm3. This metal crystallizes in a face-centered cubic unit cell. Calculate the diameter of a rhodium atom?
Gold (III) oxide, Au2O3, undergoes a thermal decomposition reaction to form gold metal and oxygen gas. Write a balanced molecular
The compound known as butylated hydroxytoluene, abbreviated as BHT, contains carbon, hyrdrogen, and oxygen. A 2.626 g sample of BHT was combusted in an oxygen rich environment to produce 7.867g of
When the ln( kE2 / kE1 ) is plotted vs. 1/T the resulting linear graph has the slope of - 4.8 and intercept of 6.1What is the difference in activation energies of the two mechanisms? For which mechanism are the reactive collisions more efficient?
The temperature of the entire system rose from 25.30 °C to 26.59 °C. Calculate the heat of reaction, in kJ, per mole of KOH(aq).
What is the concentration of the HNO3 solution? (b) How many moles of NaOH were in excess after the first addition?
The dipole moment of HBr (a polar covalent molecule) is 0.784 (debye), and its percent ionic character is 11.6 . Estimate the bond length of the bond in picometers.
Rapid Burning of Sugar Versus Its Stability Against Oxygen, Why is sugar stable under standard conditions.
Every measurement has a measurement uncertainty. Discuss how precise and accurate measurement can be achieved in spite of the inherent measurement uncertainty.
Explain Threshold / NOEL Levels of Chemical Toxins, What is the maximum average daily consumption(g) of such fish that would keep exposure level below the ADI or RfD for the compound?
What happens to the interference pattern that results from the diffraction of electrons passing through two closely spaced slits if the rate of electrons going through the slits is decreased to one electron per hour
Describe how biological membranes are organized: what roles do lipids and proteins play in this organization
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