What is percentage by mass of cacl2 in original mixture
A 1.89-g sample of a mixture of CaCl2 and Ca(NO3)2 is treated with excess AgNO3(aq). The precipitate is filtered off, dried and weighed. The dried precipitate weighs 2.71 g. What is the percentage by mass of CaCl2 in the original mixture?
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A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 5.4 seconds later. If the speed of sound is 340 m/s, how high is the cliff?
Determine the limiting and excess reactant of 361 g of SiO2 are allowed to react with 111 g of carbon to form SiC.
What are some of the obstacles that public health officials may encounter in post-conflict disaster settings in Afghanistan? What strategies could be used to address those obstacles?
A 661-kg elevator starts from rest and moves upward for 2.50 s with constant acceleration until it reaches its cruising speed, 1.62 m/s. (a) What is the average power of the elevator motor during this period?
How can knowing about different disciplines of study help you to read and write more critically as a student and a professional in the workplace?
A steam catapult launches a jet aircraft (from rest) from the aircraft carrier John C. Stennis, giving it a speed of 165 mi/h in 2.00 s. Find the average acceleration of the plane.
Predict the vapor pressure of a solution of 2.40 x 10^2 mL of glycerol, in 395 mL of water, at the normal boiling point of water.
Analyze the modern-day relevancy of the models, such as in media advertisements or education.
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The nurse has taught a group of parents about varicella infection. Which of the following statements by a parent would indicate a correct understanding
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