Calculate the mass percent-molality
A 1.30 M solution of citric acid (H3C6H5O7) in water has a density of 1.10 g/cm3. Calculate the mass percent, molality, mole fraction, and normality of the citric acid. Citric acid has three acidic protons.
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A dump truck is shown in the figure. The loaded container has a mass of 8000 Kg and may be modelled as a solid homogeneous block. The hydraulic cylinder applies a force of 300 kN to the container in the starting position shown.
A 350V d.c. shunt motor has an armature resistance of 0.18 ohm. If the field current is 30A and the load current is 220A, calculate the efficiency of the motor. (neglect iron and mechanical losses):
Calculate the change in Gibbs energy (b) Is the reaction spontaneous? (c) Calculate the total change in entropy of the system and the surroundings.
A solution is prepared by adding 30.00 g of lactose (milk sugar) to 110.0 g of water at 55 °C. The partial pressure of water above the solution is __________ torr. The vapor pressure of pure water at 55 °C is 118 torr. The MW of lactose is
If the 150 lb man fires the o.2lb bullet with a horizontal muzzle velocity of 3000 ft/s, measured relative to the 600lb cart, determine the velocity of the cart just after firing. What is the velocity of the cart when the bullet becomes embed
A reaction of clacium phosphate and sulfuric acid results in calcium sulfate and phosphoric acid. If 250 grams of calcium phosphate react with 3 mol of sulfuric acid will 3 mol of calcium sulfate be formed?
If 5.25mL of 0.1000 M NaOH solution is needed to just neutralize excess acid after 20.00 mL of HCl was added to 1.00 g of an antacid, how many moles of acid can the antacid counteract per gram?
Write a MC6812 assembly language program to find the largest number in an array of ten 8-bit numbers. The array is stored in memory locations starting at address $1100. Use branch instructions and loops.
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As I read the passage, I was reminded of a book I once read titled "Do you know enough about me to teach me?" by Dr. Stephen G. Peters.
Create a school-based program to encourage girls to resist the messages they are exposed to every day that pressure them to be thin and to dislike their bodies.
This discussion wants to help you learn about MI's concept of OARS. Take a few minutes and watch the YouTube video where OARS
Effective communication with families of ELs is an essential part of fostering student achievement and family engagement.
What is corrective feedback and how can it be effective with EL students? Why is student self-reflection important for students and teachers during formative
Assume you are the controller of a small retail shop in your area, and the chief executive officer (CEO) has requested that you explain to them
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