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Assuming that a neutron star has the same density as a neutron, calculate the mass (in ) of a small piece of a neutron star the size of a spherical pebble with a radius of 0.14 .
Express your answer using two significant figures
Determine how will this error control the final computed percentage of CH3COOH in the vinegar
The calorimeter contains exactly 341 g of water, and the temperature increases by 1.126°C. Calculate the heat given off by the burning Mg, in kJ/g and in kJ/mol.
condensed form in order of increasing orbital energy as a string without blank space between orbitals.
Why doesnt the formation of the grignard reagent start immediately upon the addition of 1-bromobutane to the magnesium turnings
How many photons per second are striking the photocell? B. How much energy is mJ/s (millijoules per second) is the photocell absorbing?
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 (a measure of the attractive force holding those ions together).
She drinks a lot of water and has consume milk of magnesia(ph value 10.5) before she feels comfortable again. State the pH values of water and blood and whether its acidic or alkaline.
Two volatile liquids (A and B) form an ideal mixture at 300.0K which just begins to boil at a pressure of 0.3000 atm. The vapor pressure of pure component A is 0.5000 atm and the vapor pressure of pure component B is 0.2000 atm
Determine the mass of aluminum acetate that can be made if you do the reaction with 125 grams of acetic acid and 275 grams of aluminum hydroxide.
if 100 mL of 0.100 M NaCl is added to 100 mL of .01 M NaCl, what is the concentration of Na ions in the final solution?"
The equilibrium constant, Kp, for the following reaction is 0.497 at 500 K: PCl5(g) PCl3(g) + Cl2(g) Calculate the equilibrium partial pressures of all species when PCl5(g)
Determine whether each of these species follows the octet rule, is octet deficient (central atom works with less than eight electrons in its valence shell), or has an expanded octet (central atom works with more than eight electrons in its valence..
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