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Does an object at rest necessarily have no forces acting on it? How about if it moves at a constant velocity? Give two real-world examples of one object at rest and one moving at a constant velocity with both having non-zero forces acting on them. What is special about the SUM of all the forces on each of these objects?
Calculate the volume of glacial acetic acid (17.6M) and eight of sodium acetate (mm=82.03) that is required to make 102 mL of 0.2M buffer at ph 4.85. The Ka of acetic acid is 1.4*10^-5.
Describe the chemistry of DNA and explain the effects of radiation on the DNA sequence.
Calculate the final temperature of a mixture of 100.0 g of ice initially at -16.0 degrees C and 375.0 g of water initially at 90.0
What is the Copenhagen theory and how is it different from the quantum theory?
In thermodynamics if we are given a reaction that is exothermic is it forever the case that the heat released from the products is the heat gained by the reactants
Given the following reaction: 2 O2 + CH4 CO2 + 2 H2O What mass of CH4 is required to completely react with 100 grams of oxygen.
A solution containing HNO2 has pH=3.40 at equilibrium. Calculate the amount of HNO2 present in 575ml of this solution Ka=0.0004 answer is 0.01 g of HNO2
a-Calculate [OH-] of a 2.25×10^-1 M aqueous solution of hydroxylamine (HONH2, Kb = 1.1×10^-8).? part b-Calculate the pH of the above solution. pls show the step wise answer since i'm struggling with chem. (the full answer) to get the full rate:)
When elemental sulfur S8, , is heated with AgF , a gas forms that contains only sulfur and fluorine. The following tests were done to characterize this gaseous product.
a metal wire 1 mm in diamter x 10 m long carries a current of.1 a. if the metal is pure copper at 30 degrees c what is
Calculate the energy necessary to boil 100.0 g carbon disulfide, CS2, at its normal boiling point.
Problem- Determine the volume in mL of 0.24 M LiOH(aq) needed to reach the equivalence (stoichiometric) point in the titration of 23 mL of 0.28 M formic acid(aq). The Ka of formic acid is 1.8 x 10-4.
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