Chemistry, 03.12.2019 05:31 summerjoiner
Asample of 0.495 grams of solid khp is weighed into an erlenmeyer flask. this sample is titrated with a sodium hydroxide solution, and 28.56 ml of naoh are required to reach the endpoint. the sodium hydroxide solution is then used to titrate a sample of phosphoric acid of unknown concentration. it requires 29.88 ml of naoh to react with 10.33 ml of h3po4 solution. what is the concentration of the phosphoric acid?
Answers: 2
Chemistry, 21.06.2019 16:30, TheRealKodakBlack
What is a scientific theory? a. a scientist's guess about how something works b. the results of an experiment obtained using the scientific method c. a proven fact that will never change d. an idea that is backed by data from many sources
Answers: 2
Chemistry, 22.06.2019 10:10, jojomgarcia01
When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —
Answers: 2
Chemistry, 22.06.2019 10:30, officialalex6330
Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o → k + o2 (b) na + i2 → nai (c) cu(no3 )2 + naoh → cu(oh)2 + nano3 (d) kclo3 → kcl + o2 (e) ca(no3 )2 + hbr → cabr2 + hno3 (f) sn(oh)2 → sno + h2 o (g) p4 + n2 o → p4 o6 + n2 (h) fe + al2 (so4 )3 → feso4 + al (i) alcl3 + na2 co3 → al2 (co3 )3 + nacl (j) c3 h6 + o2 → co2 + h2 o
Answers: 1
Chemistry, 23.06.2019 01:20, michellectucker1982
Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)
Answers: 1
Asample of 0.495 grams of solid khp is weighed into an erlenmeyer flask. this sample is titrated wit...
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