Other Chemistry Answers

calculate the mass of 0.650 % solution that can be prepared by diluting 25.9 g of 3.00 % stock solution

I work in the oilfield and deal with various chemicals. One of the chemicals we work with is roughly 60-100% ammonium acetate and 10-30% acetic acid. The designed pH is between 5.0 and 5.5. My question is: what compounds could contaminate this to cause it to crystallize? Thank you for your time.

A 0.2145g sample of KHP (FW = 204.22) was titrated with 27.12mL of NaOH. What is the molarity of the NaOH?

Lithium and fluorine always react so that 7 g of lithium and 19.2 g of fluorine produce 26.2 g of lithium fluoride.
A)what mass of lithium floride forms when 1 g of lithium is added to 4 g of fluorine?
b)Determine the mass and the identity of the reactant remaining

CH4+ 2O2= CO2+ 2H2O how many grams of CH4 were burned if 4.4 grams of CO2 was formed?

if your concentrations of two different acids were the same, would you have to add the same or different amounts of titrant?

How many grams of beryllium chloride are needed to make 125mL of a 0.050 M solution

Calculate the concentration of HTart anion in this solution
0.500M is for KNO3

KNO3(aq) + KHTart(s) -> KNO3(aq) + K(aq) + HTart (aq)

Originally, Htart was KHTart (solid) and had 2.0 added into 150mL of the KNO3(aq) solution.
How do you get the concentration of HTart?

will a precipitate occur if 250 ml of 1.5 x 10^.3 M NaCl is mixed with 250 mL of 2.0 x 10^.7 M AgNO3? Ksp of AgCl = 1.6 x 10^-10

Calculate the pH of the following solution:
0.1 M HF + 0.2 M NaCN
Given: pKa for: HF/F- = 3.2 HCN/CN-= 9.4