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Question- How many unpaired electrons are found in the ground state electron configuration of selenium (Se)
Write solution with complete explanation of required steps
How do you know whether it is talking about the concentration of the OH in MgOH2 or NH3, cuz they give different answers and apparently they are using NH3 not mgoh2
solution of water (K_f}=1.86 C/m) and glucose freezes at - 2.35 C. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 C.
the ferrous ion fe2aq reacts with the permanganate ion mno4- aq in an acidic solution to produce the ferric ion fe3aq.
a sample of gas weighs 4.134g and has a volume of 910.0ml at 895.0 torr and 39.0 c. what is the molar mass?
Part A - What volume of 2.25M HCl in liters is needed to react completely (with nothing left over) with 0.250L of 0.300M Na2CO3. Express your answer numerically in liters.
She titrated the acid with a NaOH solution whose exact concentration was unknown. A volume of 18.19 mL of NaOH solution was required to reach the endpoint of the titration. What was the concentration of the NaOH solution in units of M (mol/L)
A.) An MH ion seen in a mass spectrum with composition C10H8N3S+ B.) A fragment seen in a mass spectrum with composition C3H60+ C.) C10SiH15Br2FNPO3
the miners trapped in the san jose copper mine in chile are 700 meters below ground. calculate the work needed to raise
27.0ml of 0.11 m hclis aded to 0.37 g of a commercial antacid. the solution is titrated with 9.7 ml of 0.09 m naoh to
What mass of Titanium IV Chloride forms from 3.00g titanium and 8.00g chlorine gas
The reactant concentration in a zero-order reaction was 9.00×10^-2 M after 100s and 2.50×10^-2 M after 390s . What is the rate constant for this reaction
It is desired that the extent of disruption be >= 0.9. Plot how the number of passes varies with operating pressure over the pressure range of 50-125 MPa. What pressure range would you probably want to operate in
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