An aqueous solution of
glucose containing 12g in
loog of water was found to
boil at 100.34°c
calculate Kb for water in (kelvin)/..
help please?​

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)

Answer asap need by wednesday morning calculate the ph of 0.036m naoh best answer will be brainliest