Other Chemistry Answers

How to balance a chemical equation easily?

Solve: (1.84 x 10^2g)(44.7 m/s)^2/2.000

Lead II nitrate and sodium iodide react to form sodium nitrate and lead II iodide. The balanced chemical equation is Pb(NO3)2 +2NaI ---> 2NaNO3 + PbI2. How many miles of sodium iodide react with 250. Grams of lead II nitrate?

-What volume of 15.7M H2SO4 solution is needed to prepare 300. mL of 2.50M H2SO4 solution ?
-How many g of CrCl3 are in 50.0ml of a 1.25ml solution of CrCl3 ?
- What is the molar mass of a compound if 1.38 mol of the compound has a mass of 350. g ?
-How many g of tin (ii) hydroxide can be produced from mixing 200.0mL of 1.75M tin (ii) nitrate with 200.0 mL of 2.50M potassium hydroxide?

The mass ratio of calcium to oxygen in calcium oxide is 5/2. if the reaction of equal masses of calcium and oxygen produces 28g of calcium oxide, a) what will be the mass of each element with which the reaction is started? b) which element remains unreacted? how many grams?

Sulfamic acid as a descaler advantage and disadvantages

Advantages and disadvantages of citric acid as a descaler

Concentrations Question?
If you have 0,001 M of NaCl . Show the concentration of the chloride and sodium ions in the terms of milliequivalents per liter

What is the mass of 3.25 moles of Cu(OH)2

DEAR SIR
2- what is the upper range ppm or percent (H2S,CH3SH,C2H5SH,..)for sulfur detector
A)SCD (Sulfur Chemiluminescence Detector)
B)FPD (Flame. Photometric Detector)
C)PFPD
BECAUSE OUR PROJECT NECESSARY TO DETERMINE THAT COMPOUND IN HIGHER RANGE(H2S>2%,RSH>900ppm) WHAT IS YOUR SUGGEsT INSTRUMENT ?