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Cerra

Questions (7)

Using the Bohr model of hydrogen, find the linear momentum, when n=3.
1. 0 answers
2. 476 views
working together 2 people can mow a large lawn in 4 hours. One person can do the job alone one hour faster than the other
1. 1 answer
2. 983 views
A diving board length = 6.00 m that weighs 210 N is supported by two pillars. One pillar is at the left end of the diving board,
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2. 1,052 views
A string that passes over a pulley has a 0.321 kg mass attached to one end and a 0.655 kg mass attached to the other end. The
1. 1 answer
2. 1,195 views
In an experiment, 3.545 grams of an unknown nonelectrolyte is dissolved in 15.0 grams of water. The extrapolated freezing point
1. 3 answers
2. 539 views
A 2.0-kg box rests on a plank that is inclined at an angle of 65 degrees above the horizontal. The upper end of the box is
1. 1 answer
2. 841 views
Develop a detailed calorimetric method for determining the temperature of the warm water sample. Materials: Hot water sample of
1. 1 answer
2. 583 views

Ok so when I solved for molality I got 0.30108. Then I plugged in and solved for moles and I got .0045 moles. So when I solved for molar mass I got 784.96 g/mol. Does that sound right? Thank you so much!!

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