Other Chemistry Answers

calculate the atomic number of an element whose atomic nucleus has mass number 23 and neutron number 12. what is the symbol of the atom

in order to Sublime the vapor pressure of the solid needs to equal the surrounding....

What is the maximum mass of S8 that can be produced by combining 90.0 g of each reactant?
8SO2+16H2S>>>>>> 3S8+16H2O

What volume (in L) of 0.90% NaCl solution is needed to provide 4.7 g of NaCl? Assume the density of the solution is 1.0 g/mL. _______ L

suggest an explanation for the fact that the determination of solubility by the analytical method used in A GENERALLY gives a value which falls slightly below the curve obtained in B?

ACCORDING to the solubility curve obtained in this experiment what is the solubility of potassium chlorate in water at 45 c? at 63 c?

would the experimental curve as obtained by the method used in B lie above or below the accepted curve if :(explain each answer concisely)
a)some of the water were lost through excessive heating?

b)some of the solid were spilled and did not dissolve in the water after being weighed?

c)the crystals were not observed promptly?

d) the salt tends to give supersaturated solutions?

A chemical reaction can theoretically produce 137.5 grams of product, but in actuality 112.9 grams are produced. Which is the percent yield for this reaction?

Number of moles of O2 required to completely react with 75 grams of Sb?

The electron affinities of noble gases are equal to _________________ due to their ________________

4. Predict what products are obtained when the D-galactose reacts with each of the following reagents:

a) Br2 and H2O
b) H2, Ni
c) NaOH, H2O
d) Br2, H2O, after H2O2 and Fe2 (SO4) 3
e) CH 3 OH, H +.
f) NaBH4
g) Tollens Reagent

5. Say what products are expected when the (+) - glyceraldehyde reacts with HCN

Calculate the molarity of a sodium hydroxide solution if 24.3 mL were required to titrate 25.00 mL of a 0.873 M acetic acid solution.