General Chemistry Answers

Potassium dichromate is used for preparation of strong cleaning solutions for glassware and etching materials. It is also use in leather tanning and wood staining. Find its empirical formula which contains 26.56% potassium, 35.41% chromium, and the rest is oxygen.

Glycerol is a colorless, odorless, viscous liquid with a sweet taste and non-toxic in low concentration . It is obtain as a by product of manufactured soap. Its percent composition is 39.12% C, 8.75% hydrogen, and 52.12% oxygen. The molecular mass is 92.11 g/mol. What is the molecular formula for glycerol

Same amount of current was passed though silver nitrate and sodium chloride solution connected in series. At cathode 0.35% hm silver was deposited.What amount of sodium would be deposited in the same time at the cathode?(Ag=108,Na=23)

How many moles and how many atoms are present in 11.5 g of sodium? Use N_A = 6×10²³

The solubility of a compound in water is 6.8g/100ml at 25�C. Calculate the amount of water required to crystallise 10g of the compound. If the pure compound is collected at 25°c what is the maximum possible yield percent?

What are the primary factors that change the physical behavior of substances on different planets?

and what are some examples of substances that exist in different forms than on earth on different planets, and explain why they are different.

A 2.00 L tank is filled with methane (CH4) at 35 C and a pressure of 360 Kpa. How many grams of methane does the tank contain?

balanced chemical equation on how antacid reacts with the acid in the stomach

calculate the percentage of nitrogen content by mass in urea, CO(NH2)2.

(A) containing 3.70gdm-3 of an acid H2X and (B) containing 2.15g NaOH per 250cm-3 of solution assume you carry out titration with the two solution and obtained the average titre value of 24.00cm-3

Calculate the concentration of the solution B in moldm-3

Calculate the concentration of the solution of A in moldm-3

Calculate the relative molecular mass of the acid H2X