If a 750g solution of sodium bromide is 2 molal, how many grams of NaBr does it contain?

a. 53 g

b. 69 g

c. 103 g

d. 155 g

e. 173 g

Explain the advantages of crystallisation over evaporation

Be sure to answer all parts. Plutonium-242 decays to uranium-238 by emission of an α particle with an energy of 4.853 MeV. The 238U that forms is unstable and emits a γ ray (λ = 0.02757 nm). (a) Write a balanced net equation for these reactions.

Where are protons located

Which is stronger, a glass bottle or a glass candlestick?

Which best describes Internet wikis as a source of scientific information? a. Wikis are good sources of reliable scientific information. b. Wikis are written only by experts in their fields. c, Wikis are always extensively peer reviewed. d.

What is carbon fixation, and how does it relate to photosynthesis? It is the absorption of CO2 from the air;, and it occurs during the light-dependent reactions. It is the reduction of CO2, and it occurs during the Calvin cycle.

What is a Boitic factor

What would the partial pressure of water vapor be if you included this gas in the problem and it gave a total of 1.03atm? 0.01 atm 0.03 atm 1.03 atm

Define a balance equations:

What is the best description of the Bohr model of the atom? The atom consists of a positively charged material with negatively charged electrons embedded within it. The atom consists of a nucleus with electrons orbiting randomly around it.