How do you find the atomic weight of the element in amu
A certain element has two isotopes with Abundance and Mass as 73%, 99 amu, and 27%, 118 amu. How do you find the atomic weight of the element in amu?
Expected delivery within 24 Hours
Dilute Hydrochloric acid is added to a 0.500 g sample of alloy containing zinc and copper. The gas evolved (79.7 mL) is collected over water at 23 C and the barometric pressure of 737 mmHg.
A generic vinegar, 4.5 % acetic acid, costs 95 cents for an 8 oz bottle and $ 2.79 for a quart bottle. which is cheaper? Calculate the cost of each bottle in $/g acetic acid.
A 48-g sample of a gaseous fuel mixture contains 0.57 mole fraction propane,C3H8; the remainder of the mixture is butane,C4H10. What are the masses of propane and butane in the sample?
Vanillin, C8H8O3, occurs naturallyin vanilla extract and is used as a flavoring agent. A 42.5-mg sample of vanillin was dissolved in181.5 mg of diphenyl ether,(C6H5)2O. What is the molality of vanillin in the solution?
Decision management, Please include references etc..........................................................................
The ionization constant Ka of the indicator chlorophenol redis 1.0x10^-6. The color of the nonionized form of the indicator(HIn) is yellow and that pf the ionized form (In-) is red. What is the color of the indicator in a solution whose pH is 8.oo
If the temperature rise of the calorimeter with water was .570 degrees C, calculate the enthalpy of combustion of magnesium. Mg+1/2 O2 produces MgO
What is the osmotic pressure of a solution prepared from 13.7g of the electrolyte HCl and enough water to make 0.500L of solution at 18 degrees C?
1956912
Questions Asked
3,689
Active Tutors
1453170
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
How is it rational for the owner of a factory or plantation to work his laborers to death or disability when they can easily be replaced cheaply?
Multiple Choice Question Identify a true statement about political systems controlled by men. Multiple choice question.
Question: Cases of local communities using modern technology to preserve and revive their traditions:
Question: What is meant by indigenismo (Keywords in Week 2)? What is las cronicas de castas (Cope)?
Question: Which of the following are forms of media bias? (Select all that apply)
Question: Symbolic interactionism took off as a theoretical approach to the study of deviance during the 1960s
Question: Examine gender inequality on a global scale, considering how factors such as globalization, colonialism