How many moles of koh were in the sample
a 75.0 mL sample of potassium hydroxide, KOH, of unknown concentration is titrated with 42.5 mL of 0.575 M acetic acid. How many moles of KOH were in the sample?
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If a 1500 rm kg car can accelerate from 30 km/h to 50 km/h in 3.1 s, how long will it take to accelerate from 50 km/h to 75 km/h? Assume the power stays the same, and neglect frictional losses.
A tile-iron consists of a massive plate maintained at 150°C by an embedded electrical heater. The iron is placed in contact with a tile to soften the adhesive, allowing the tile to be easily lifted from the subflooring
Write Lewis structures that obey the octet rule for each of the following molecules and ions. (In each case the first atom listed is the central atom.)
Calculate the Heat of Fusion of ice if you had 15 grams of warm water at 40 degrees Celsius in a Styrofoam cup and you added 4.27 grams of ice originally at 0 degrees celsius and after the ice melted the combined liquid was 10.0 degrees celcius an
If a bottle of nail polish remover contains 172 mL of acetone, how much heat would be released by its complete combustion? The density of acetone is 0.788 g/mL.
Steam enters a diffuser at 20 psia and 240oF with a velocity of 900 ft/s and exits as saturated vapor at 240oF and 100 ft/s. The exit area of the diffuser is 1 ft2.
Consider the following thermochemical equation: CaCO3(s) CaO(s) + CO2 Ho = +178 kJ. How much heat must be absorbed by 22.5 g of CaCO3 to convert it completely to CaO?
The product of this reaction, ozone, is a pollutant in the lower atmosphere. Ozone is an eye and lung irritant and also accelerates the weathering of rubber products. Write Lewis structures for each of the reactants and products in the preceding r
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Sahir is the most active student in your kindergarten class. He tends to be very disruptive when the teacher you work with is teaching the class,
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Question: Identify a true statement about validity as applied to a test. Multiple choice question
Think about where you were the most and least engaged when reading a classmate's draft. Think about what captured your attention
Outline a social issue that is important to you. Describe why it is important to you, why it is important from a societal perspective and how you think
Identify and discuss three ethical guidelines that are important to consider when designing an 8-week group for adolescents who are referred
Question: Jena and Ben are employees of Big City Electronics. They began to have a consensual sexual relationship.