Chemistry Answers

Write the following in terms of SI base units using scientific notation

47Mg

1. 9.8g/cm³

At 50.° C the vapor pressure of ethanol is 0.30 atm,acetic acid is 0.08 atm,water is 0.12 atm,and acetone is 0.84 atm.

A. arrange these substances in order of increasing intermolecular forces of attraction.

B. arrange these substances in order of increasing boiling point temperature.

Acetaldehyde has absorption signals at 160, 180 and 290 nm What type of transitions are responsible for each of these absorptions?

have about 10g of iron(ii) ammonium...

Question: We have about 10g of Iron(II) ammonium sulphate crystals. We mix these and make a 20cm3 acidified...

We have about 10g of Iron(II) ammonium sulphate crystals. We mix these and make a

20cm3 acidified solution of this. Approximately 21.25cm3 of potassium dichromate(VI)

(0.02 mol dm-3) is needed for oxidation of 25cm3 of the solution made.

Given the formula of crystal as 𝐹𝑒􀯔􁈺􀜰𝐻4􁈻􀯕􁈺𝑆􀜱4􁈻􀯖. 𝑥𝐻2􀜱

The value of a+b+c+x is?

An ice cube of mass 65 g is taken from a freezer at -15o C and dropped into 125 cm3 of water at 85o C. What will be the final temperature of the mixture? The specific heat of ice is 0.5 cal/g.o C and latent heat of fusion of ice is 80 cal/g.

If 4.58 x 104

g CH3OH is actually produced, what is the percent yield of methanol

A solution is made by dissolving 125 g of sodium chloride in 75.0 kg of water what is the percent by mass?

Find the percent by volume of a 37 mL solution if it contains 16 mL of potassium hydroxide

Illustrate with 12 balanced chemical equations the reactions of water as described above. ( Chemical properties)

5.04g of Ag was deposited when 0.5A of electricity flows a silvertrioxo(5) solution for 2 hours and 30 minutes.Calculate the R.A.M of Ag (Ag=108g,F=96500