Chemistry, 12.07.2019 04:00 heathercollard57
How many grams of hydrogen peroxide (h2o2) must be added to 1,500 ml of water to produce a concentration of 1.33 m (molal solution)? (recall that the density of water is 1.0 gram/ml.) 0.059 g 30. g 68 g 68,000 g
Answers: 2
Chemistry, 22.06.2019 06:00
Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.
Answers: 2
Chemistry, 22.06.2019 07:00
How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:
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Chemistry, 23.06.2019 02:30
Calculate the ph at the equivalence point for the titration of a solution containing 150.0 mg of ethylamine (c2h5nh2) with 0.1000 m hcl solution. the volume of the solution at the equivalence point is 250.0 ml. kb forethylamine is 4.7 × 10−4 .
Answers: 2
How many grams of hydrogen peroxide (h2o2) must be added to 1,500 ml of water to produce a concentra...
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