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15 In chemistry, substances react on the basis of ?
Amount in grams equivalent
Amount in volume equivalent
Amount in relative ratios
Amount in moles equivalent
Amount in grams equivalent
Amount in volume equivalent
Amount in relative ratios
Amount in moles equivalent
Do you know how long it takes to do a lab report because my is due tomorrow and I do not know how long it will take them I gave it to them a day and a half ago.
A 50.00 mL solution of 0.0350 M hypochlorous acid (ka = 3.5 x 10^-5) is titrated with a 0.0105 M solution of NaOH as the titrant. What is the pH of the acid solution after 15.00 mL of titrant have been added?
A titration of 200.0 mL of 1.00 M H2A was done with 1.18 M NaOH. For the diprotic acid H2A, ka1 = 2.5 x 10^-5 and ka2 = 3.1 x 10^-9. Calculate the pH after 100.0 mL of 1.18 M NaOH have been added
ok soo our lab used alka seltzer to determine the % of sodium bicarbonate using different proportations of vinegar and water to absorb the tablet, how does this lab conform to the 12 green principles which ones does it violate and how can we make this lab greener
I need 100 mL of a buffer with a pH of 5.20 and it's acetic acid or HC2H3O2. So I need to find out how many grams of acetic acid are needed to make this buffer. (Ka = 1.8 x 10-5)
What I have so far...
pH = pKa + log(base/acid)
5.20 = 4.74 + logx
x = 2.884 M
2.884 M * .1 L = .2884 mol
.2884 mol * 60.052 g = 17.32 g
i know this is wrong because the answer is 11.54 g.
can you help me find my mistake please?
What I have so far...
pH = pKa + log(base/acid)
5.20 = 4.74 + logx
x = 2.884 M
2.884 M * .1 L = .2884 mol
.2884 mol * 60.052 g = 17.32 g
i know this is wrong because the answer is 11.54 g.
can you help me find my mistake please?
How many grams of Aluminum chloride are produced when 734 mg of barium chloride react with an excess of Aluminum sulfate? show your work.
Gasoline is C8H18. Calculate how much water and carbon dioxide is produced from 1 gallon of gasoline (SG=0.75).
A MIXTURE OF POWDERED ALUMINUM AND TIN WAS BURNED IN AN ATMOSPHERE OF OXYGEN IN A WAY SUCH THAT THE RESULTING OXIDES COULD BE COLLECTED AND WEIGHED 0.5488g; THE MIXTURE OF Al2O3 AND SnO2 WEIGHED 0.7712g. CALCULATE THE WEIGHT PERCENT AND ATOM PERCENT OF Al AND Sn IN THE INITIAL MIXTURE
A 0.817G SAMPLE OF METAL WAS HEATED IN AIR TO FORM THE OXIDE. THE OXIDE WEIGHED 0.933G. BY ASSUMING THAT THE METAL ATOMS COMBINE WITH OXYGEN ATOMS IN A 1:1 RATIO, CALCULATE THE ATOMIC WEIGHT OF THE METAL
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#339914 on Dec 2023
#339914 on Dec 2023