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What is the concentration of the new solution If 2.0 mL of H2O is added to 8.0 mL of a 0.30 M solution to make a new solution with a total volume of 10.0 mL,?
How many moles are contained in 500.0 mL of solution If this solution of Co (NO3)2 has a concentration of 0.10 M,?
If you wanted to prepare a solution of CO in water at 25 in which the CO concentration was 2.1 mM , what pressure of CO would you need to use
A sample of ethanol (C2H5OH) has a mass of 38.6 g. How many carbon atoms does the sample contain?
Two particles with charges q1 and q2 are separated by distance d. Rank these scenarios according to the magnitude of the electrostatic (coulombic) potential energy.
How many mL of each solution should be diluted to 500 mL to make 0.100 M reagent?
how many equivalents of KBr moles of 0.00416 relative to acetanilide moles of 0.00381 are used in this reaction
In the molecular orbital model of the cyclopentadienyl cation, how many pairs of degenerate pi-antibonding molecular orbitals are there
Draw the trinucleotide formed when a DNA polymerase catalyzes the addition of dCTP do the dinucleotide pppGA.
Deduce from these data the corresponding equation and write the formulas for the oxide and sulfate of M. Using the smallest whole number coefficients write the balanced equation for the reaction of the metal M with hydrochloric acid.
What volume of 0.25 M HCl solutions must be diluted to prepare 1.00 LK of 0.040 M HCl?
A sample of .755g of NaHCO3 was dissolved in 25mL of .960 M HCl. After heating, 6.7 mL of .601 M NaOH was needed to neutralize the excess acid that was not neautralized
how many ice cubes are needed to cool 500 g of water initially at 23 c to 0.0 c if each cube at 0.0 c contains one mole of water.
NO(2) + CO--> NO +CO(2) is 125 Kj/mol and delta E for reaction is -216 kJ/mol. What is the activation energy for the reverse reaction. (NO+CO(2)--> NO(2) +CO
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