Chemistry, 30.06.2019 07:50 ethanboshears15
What is the ph at both endpoints of titration between diprotic tartaric acid and naoh? (all details provided below). the chemical equation for the titration: c4h4o6 + 2naoh > na2c4h4o6 + 2h2o here are the 1st and 2nd ka value for tartaric acid: ka1 = 9.2 x 10^-4, ka2 = 4.3 x 10^-5 molarity of tartaric acid = 5x10^-4 standard solution of naoh was made using 0.98g of solid naoh dissolved in 250ml of water. the molar mass of naoh is 39.997 g/mol.
Answers: 1
Chemistry, 22.06.2019 10:00
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) β co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) β co2(g) k=1.363Γ10^69 b. 2 h2(g) + o2(g) β 2 h2o(g) k=1.389Γ10^80 c. 2co(g) + o2 (g) β 2 co2(g) k=1.477Γ10^90
Answers: 1
Chemistry, 22.06.2019 11:00
Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that canβt be observed.
Answers: 1
Chemistry, 22.06.2019 14:30
Aroom with dimensions 7.00mΓ8.00mΓ2.50m is to be filled with pure oxygen at 22.0βc and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?
Answers: 1
What is the ph at both endpoints of titration between diprotic tartaric acid and naoh? (all details...
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