Chemistry, 07.07.2019 23:10 keving4three
Assume that you had a mixture of solid na2co3 and nacl. could you use only h2so4 to determine whether na2co3 was present. explain.
Answers: 1
Chemistry, 21.06.2019 23:30
What’s the scientific notation for the number 6,840,000,000
Answers: 1
Chemistry, 22.06.2019 06:30
Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?
Answers: 1
Chemistry, 22.06.2019 15:30
Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.
Answers: 2
Chemistry, 22.06.2019 20:00
Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
Answers: 3
Assume that you had a mixture of solid na2co3 and nacl. could you use only h2so4 to determine whethe...
Mathematics, 31.07.2019 03:30
Mathematics, 31.07.2019 03:30
Mathematics, 31.07.2019 03:30
Mathematics, 31.07.2019 03:30
Social Studies, 31.07.2019 03:30
Mathematics, 31.07.2019 03:30