trump
This page lists questions and answers that were posted by visitors named trump.
Questions
The following questions were asked by visitors named trump.
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 solution with a pH of 10.4? Express your answer to three significant figures and include the appropriate units.
5 years ago
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 in CO32− Determine the pOH of a solution that is 0.130 M in CO32−.
5 years ago
Amphetamine (C9H13N) is a weak base with a pKb of 4.2. Part A Calculate the pH of a solution containing an amphetamine concentration of 220 mg/L .
5 years ago
Determine the [OH−] of a solution that is 0.240 M in HCO3− (Ka1=4.3×10−7). Determine the pH of this solution.
5 years ago
Write chemical equations and corresponding equilibrium expressions for each of the two ionization steps of carbonic acid Write chemical equations for first ionization step of carbonic acid write chemical equations for second ionization step of carbonic ac...
5 years ago
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 the concentration of H2CO3. Calculate the concentration of HCO−3. Calculate the concentration of CO2−3. Calculate the concentration...
5 years ago
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
4 years ago
Answers
The following answers were posted by visitors named trump.
no one cares loser
9 years ago
hillary 2 jail
7 years ago
9 years later.
6 years ago
dont make sense
5 years ago
and this is middle and high school chem, not college.
5 years ago
too confusing
5 years ago
If I could do it I would. I have spent 5 hours on it already
5 years ago
None of the other resource on the internet can help me. I tried to do it on my own but it does not make any sense.
5 years ago
All I want is some help on my homework
5 years ago
And besides you need to pay for brainly and all its good for is studyisland
5 years ago
I am not asking for my work to be done for me, and I already put in some effort
5 years ago
I am still very confused
5 years ago
how do you plug the E line into the Kb expression
5 years ago
how do you solve for x
5 years ago
do we use quadratic formula?
5 years ago
What if I told you that I do not
5 years ago
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
5 years ago
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
5 years ago
mastering chemistry was wrong because I put 2.32 in and it was wrong, but when I put 11.7 in it was right
5 years ago
tan(42)=x/8 x=7.2
5 years ago
i would get a couple wrong on the practice so later on you don't get harder assignments
5 years ago
525
4 years ago
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
4 years ago
sussy baka
3 years ago
did i ask?
3 years ago
ratioing the ratio thats ratioing the ratio becuase someone pissed in my hair
3 years ago