Other Chemistry Answers

why yeast might produce ethanol during fermentation if ethanol is eventually toxic to them.

The phosphate in a 4.258-g sample of plant food was precipitated as
Ag3PO4
through the addition of 50.00 mL of 0.0820 mol L-1 AgNO3
:
3Ag+ + HPO42- ⇌ Ag3PO4(s) + H+
The solid was filtered and washed, following which the filtrate and
washings were diluted to exactly 250.0 mL. Titration of a 50.00-mL
aliquot of this solution required a 4.64-mL back-titration with 0.0625
mol L-1 KSCN. Express the results of this analysis in terms of the
percentage of P2O5
.

How many milliliters of water have to be added to 300 mL of stock solution of 11.1 M HNO3 to have final concentration of 6.00 M?

which element does not form a stabel ion with the same electronic structure as argon?
A aluminium
B chlorine
C phosphorus
D potassium

Looking at your patterns, how could you predict the bonding pattern of elements based on their location in the periodic table. You might consider the following: chemical families, valence electrons, electronegativity, ionization energy, and oxidation numbers (charge). For element CS2

Calculate the [H3O+], [OH], pH, and pOH for a solution prepared by dissolving 3.1g KOH(s) (FW=56g/mol) unto enough water to give a volume of 0.500L.

Consider the reaction K2S(aq) + Co(NO3)2(aq) --> 2KNO3(aq) + CoS(s)

What mass of CoS is produced from 4.84 g Co(NO3)2 and 115 mL of 0.225 M K2S solution? _____ g (Give answer to correct sig figs in units of g)

Consider the reaction 3CaCl2(aq) + 2Na3PO4(aq) --> Ca3(PO4)2(s) + 6 NaCl(aq) (molar mass of calcium phosphate is 310.18 g/mol)

What volume of 0.500 M Na3PO4 solution is needed to react with 275 mL of 0.150 M CaCl2? _____ mL (Give answer to correct sig figs in units of mL)

is there a way to combine a human's speed with 6.02x10^23 to make them as fast as light?

what is the molar concentration of 5g of sodium hydroxide in 250cm^3{Na=23,H=1}