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In an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions), which affects lattice energy
The charges and sizes of the ions in an ionic compound affect the strength of the electrostatic attraction holding that compound together. Based on ion charges and relative ion sizes, rank these ion
Determine the charge on each ion in the following compounds, and name the compound. Li2O and CaS
Give the formula for an ionic compound formed from the following pairs of ions. Tip: Use the Xy button to subscript the numbers.
A Gouy balance is used to determine the magnetic susceptibility of a substance. A strong electromagnet is placed next to the sample, which is on a balance.
What is the total molar concentration of ions in each of the following solutions, assuming complete dissociation? A 0.500M solution of K3CO3
Complete the ground-state electron configuration for these ions (using the noble gas abbreviation) and identify the charge. we need to find the electron configuration and the charge for Zinc ion thall
Some investigators modified the Cys 278 with iodoacetamide and found that the enzyme activity was abolished as a result. They concluded that the Cys 278 residue was absolutely essential for enzymati
If 25.0 ml of 0.150 M Ba(OH)2 is required to react completely with 45.0 ml HCl solution, what is the molarity of the HCl(aq)
Hydrochloric acid is added to zinc. How many mls of 0.500 M HCl are needed to react completely with 25.0 g of zinc metal
What will be the total volume of solution, in ml, when the concentration of 175.0 ml of 0.100 M K3PO4 solution is decreased to 0.012M
What is the molarity of a solution made by dissolving 45.3 g of potassium nitrate KNO3 in enough water to make 225 ml of solution
Which of the following statements is/are correct. i. KBr, HClO3, and HClO2 are strong acids ii. NaH, KOH, and Li2O are strong bases iii. HI, HClO3, and HNO3 are strong acids
What was the concentration (mol/L) of the permanganate solution. Submit answers correct to two decimal places.
Determine the value for delta H solution at infinite dilution calculated from the following delta standard H of formation
Ammonia reacts with hypobromite, OBr-, according to the equation below. Find the molarity of OBr- is 13.35mL of solution reacts with 4.66mg of NH3 (molar mass = 17.03). 2NH3 + 3OBr- ----> N2 + 3B
A new temperature scale was invented by a scientist named Pat and is called the Patrius scale. On her scale, water froze at 35°P and boiled at 280°P. What Celsius temperature is equal to 150
Which is the correct arrangement of types of radiation when ordered in decreasing energy per photon. a. Radio waves, microwave radiation, ultraviolet light, X-rays
German physicist Werner Heisenberg related the uncertainty of an object\'s position (?x) to the uncertainty in its velocity ?v.The mass of an electron is 9.11× 10-31 kg.
The text states that the odor of ozone can be detected in concentrations as low as 10 ppb. In which one of the following samples/situations would you not be able to smell ozone.
for the reaction X(g) + 3Y(g) equilibrium 3Z(g). Kp=2.08x10^-2 at a temperature of 277 degrees Celsius. Calculate the value of Kc
Draw a formula for the lowest molecular weight compound that contains C, H, and possibly O, is a chiral compound, contains ONLY one functional group, and is a(n) alkane.
why is it best to cool the crucible and lid (and sample) in a desiccator rather than on the laboratory bench
Write a molecular equation for the reaction between ammonium sulfide and lead(ii) solution
What is the wavelength (in nm) of the photon absorbed for a transition of an electron from n_initial=1 that results in the least energetic spectral line in the ultraviolet series of the H atom