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A violin originally costs $700, but it is on sale for 15% off. If a customer buying the violin has a gift card for $60.00, what
4 answers
832 views
Calculate the concentration of all species in a 0.145 M solution of H2CO3 (Ka1 is 4.3×10−7 and Ka2 is 5.6×10−11).
Calculate
1 answer
2,227 views
Write chemical equations and corresponding equilibrium expressions for each of the two ionization steps of carbonic acid
Write
3 answers
3,132 views
Determine the [OH−] of a solution that is 0.240 M in HCO3− (Ka1=4.3×10−7).
Determine the pH of this solution.
4 answers
2,991 views
Amphetamine (C9H13N) is a weak base with a pKb of 4.2.
Part A Calculate the pH of a solution containing an amphetamine
1 answer
525 views
Determine the [OH−] of a solution that is 0.130 M in CO32− (Kb=1.8×10−4).
Determine the pH of a solution that is 0.130 M
8 answers
6,036 views
What volume of a 15.0% by mass NaOH solution, which has a density of 1.116 g/mL, should be used to make 4.95 L of an NaOH
1 answer
833 views
Answers (26)
ratioing the ratio thats ratioing the ratio becuase someone pissed in my hair
did i ask?
sussy baka
A violin originally costs $700, but it is on sale for 15% off. If a customer buying the violin has a gift card for $60.00, what will his final price be on the violin after using the gift card
525
i would get a couple wrong on the practice so later on you don't get harder assignments
tan(42)=x/8 x=7.2
mastering chemistry was wrong because I put 2.32 in and it was wrong, but when I put 11.7 in it was right
the answer actually might be wrong because I used my answer 2.32347191 to find the ph , and it was right I did ph=14-2.32347191 ph=11.67652809
I worked out 1.8 x 10^-4 = (x)(x)/(0.130-x) then put the answer -log(0.00474819) into a calculator an got 2.32347191 but it says that it is wrong
What if I told you that I do not
do we use quadratic formula?
how do you solve for x
how do you plug the E line into the Kb expression
I am still very confused
too confusing
and this is middle and high school chem, not college.
dont make sense
9 years later.
hillary 2 jail
no one cares loser
