Explain the students error
A student reported the follow ing percentages for his unknown mixture: 25%NH4Cl, 30% NaCl, and 50% SiO2. Assuming that the calculations were done correctly, explain the students error?
Expected delivery within 24 Hours
A certain first-order reaction () has a rate constant of 7.20×10-3 at 45 . How many minutes does it take for the concentration of the reactant, , to drop to 6.25 of the original concentration?
A 15.0-g sample of a hydrocarbon is placed in a balloon at 1.00 atm and 25°C, and the volume of the balloon is 12.2 L. The hydrocarbon is 79.89% carbon and 20.11% hydrogen by mass. Determine the molecular formula of the hydrocarbon.
Estimate the osmotic pressure of human blood at 37°C. Assume blood is isotonic with a 0.16 M NaCl solution, and assume the van't Hoff factor i is 1.9 for NaCl.
Calculate the mass percent of a rm NaCl solution in which 110 g of rm NaCl is dissolved in 2.41 L of water at 25 rm ^circ C (density = 0.997 rm g/mL).
Calculate the expectation value <r> for the 3P state of the hydrogen atom. Would <r> be greater or smaller for the 4P state? Why?
What kinds of attractive forces bind Congo Red to cotton fibers?
Calculate the molarity of a solution of glycerol made by dissolving 34.000 mL glycerol at 15 C in enough water to make 300.00 mL of solution.
Calculate the minimum number of grams of propane, , that must be combusted to provide the energy necessary to convert 5.00 kg of ice at -17.5 degrees Celsius to liquid water at 77.0 degrees Celsius.
1948892
Questions Asked
3,689
Active Tutors
1445004
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Employee mental health is strongly shaped by organizational culture and values. Organizations can improve mental health by reducing excessive workloads
Describe how you have respectfully defied social norms in an authentic life example. Describe how you have successfully collaborated with others
Objectives: Identify elements of the online classroom environment. Review available GCU academic resources.
you are asked to present a paper to help all the teachers attending understand how constitutional law affects teachers and students.
What are the psychological effects of prolonged workplace conflict on employees, and how can organizations mitigate these impacts?
creating a PowerPoint Slide deck (no narration required) consisting of five slides - a title slide and an informational slide for each of the following
1: Explain the lifespan perspective and its assumptions about development. 2: Summarize the major changes that occur in physical, cognitive, and psychosocial