What is the molar mass
A solution is made by dissolving 26.44 g of (NH4)2SO4 in enough H2O to make 50.75 mL of solution.
a) What is the molar mass of (NH4)2SO4?
Expected delivery within 24 Hours
Three resistors R1, R2 and R3 are connected in series and a supply voltage of 240 V. If R2 = 2R1, R3 = 3R1 and the total power taken by the circuit is 480 watts. Calculate the power in each resistor?
Design a parking gate mechanism for use in a building where it needs to fold due to the height of that location. Dimensions are shown fig. The gate fixed pivots must be somewhere on the control post.
In 1988, the average wage rate was $9.45 an hour and in 2008 the average wage rate was $18.00 an hour. The CPI in 1988 was 118.3 and in 2008 it was 215.3 . Which real wage rate is higher ?
Calculate the mass of silver chloride required to plate 225 of pure silver.
A solution is made by dissolving 26.44 g of (NH4)2SO4 in enough H2O to make 50.75 mL of solution. What is the molar mass of (NH4)2SO4?
Based on the data, what is the order of the reaction? (Use a number like 0, 1, 2, 3, ... rather than a word.)___? Determine the specific rate constant for the reaction at the temperature of the experiment.
You have a 120 Ω quarter bridge 2 wire set up with Sg=2.10 and an unknown lead wire resistance. A 59880Ω calibration resistor is switched in parallel to the gage only and a recording instrument is set to give a -100 mm deflection for this
Calculate the pressure of dry oxygen. If the total pressure of oxygen generated over water is measured to be 638 torr and the temperature is 22 degress celcius?
A solution consisting of four parts 70% HNO3 , four parts 49% HF, and two parts CH3COOH is used to etch silicon. If the solution is held at room temperature, what etch rate would you expect? If the compound is to remain at two parts CH3COOH, what
1946720
Questions Asked
3,689
Active Tutors
1445467
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?
"Gender inequality is not some accidental, hit-or-miss affair. Rather, each society's institutions work together to maintain the group's particular form of
Question: What is meant by indigenismo (Keywords in Week 2)? What is las cronicas de castas (Cope)?
This week watch the 3 short video clips below about cultural appropriation. These videos will redefine terms like cultural appropriation
Question: Cases of local communities using modern technology to preserve and revive their traditions:
Question: Which of the following statements about sociological approaches are true?
Q1. Explain how the Code of the Suburbs differs from the Code of the Street? Q2. Explain your general thoughts on the book.