Does the molarity change
Suppose you have 10 ml of 0.10m sucrose solution. you add 90 ml of water to the solution. Do the number of sucrose change? Does the molarity change?
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One of the components of pineapple flavor is ethyl butyrate, which has the empirical formula (C3H6O)x. Its vapor took 162 seconds to effuse through a porous plug; the same amount of Co2 molecules effused through the plug in 100seconds under the sa
A 93 gram solution of silver nitrate contains 16 grams of AgNO3. What is the percent by mass of silver nitrate in this solution?
What is the specific heat of a metal if the temperature of a 12.5-g sample increases from 19.5 degrees C to 33.6 degrees C when it absorbs 37.7 J of heat?
Calculate the molarity of acetic acid in a viegar sample, knowing that 5.00 mL of vinegar requires 43.50 mL of 0.105 M NaOH to jut reach the phenolphthalein endpoint in a titration.
What mass of NaCl must be dissolved in 65.0 grams of water to lower the freezing point by 7.50 °C? The freezing point depression constant, Kfp, for water is -1.86 °C/m. Assume the van't Hoff factor for NaCl is 1.87.
Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?
A tank with a total pressure of 4.7 atm has a mixture of gases that is 72% nitrogen, and the rest is oxygen. What is the partial pressure of the nitrogen? The oxygen?
By how much would the pH change, and in which direction, if we added to this solution enough base to neutralize 10% of the total acid?
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A 2016 survey of undergraduate students considered this further and found that compared with students that did not use cannabis at least once
Problem: An infant with known congenital heart disease presents with weight loss, tachypnea, and hepatomegaly.
For a research topic on evaluating the access to health services for commercial sex workers as a mixed method approach provide the methodology
The healthcare provider ordered a urine culture for a client. Which item would a nurse need for a urine specimen collection from an existing indwelling
The nurse practitioner (NP) evaluates a client with complaints of a burning sensation in the chest that often occurs after meals and is exacerbated
I am writing a dissertation topic on the utility of community based interventions in post exposure support to survivors of IPV in uMzingwane district
A 12-month-old child presents with fever of 100.9, lethargy, vomiting and tachypnea. The history is significant for recent hand-foot-mouth disease infection.