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Write the name of each of the following Ionic Compounds: Ba3(PO4)2, MgSO4, PbO2
Concentrated sodium hydroxide (NaOH) is 19.4 M, has a density of 1.54 g/mL, and is a strong electrolyte. What is the molality of 19.4 M NaOH? Assume NaOH(aq) dissociates completely to produce two moles of ions per mol NaOH.
A sample of gas originally at 37.2oC and 1.25 atm pressure in a 3.4 L container is allowed to expand until the pressure is 0.73 atm and the temperature is 14.9oC.
1. what are the average calories not calories per gram for each of your food items?2. use the nutritional information
what is the volume change when 2 kg of water at 6.8 MPa and 93 Celsius expands to 1.6 bar
Find the activation energy barrier for this reaction. What temperature should I use if I want the reaction to have a rate constant that is 10 times bigger than the rate constant found at 600K
the protein (dissolved in water) displays an osmotic pressure of 319.88 Pa at 310.15 K. If the volume of the protein solution is 22.0 mL, what is the molar mass of the protein?
what is simple experiment can be performed to confirm that baking soda changes
A 757 mL gas sample at STP is compressed toa volume of 202 mL, and the temperature isincreased to 30 degrees C. What is the new pressureof the gas in Pa?
a solution of ethanol c2h5oh in water is prepared by dissolving 72.0 ml of ethanol density 0.79 gcm3 in enough water
Pure O2 diffuses through an aperture in 224 seconds whereas a mixture of O2 and another gas containing 80% O2(by wt) diffuses from the same in 234 seconds. Explain what is the molecular weight of the gas
Question- 1. List three ways in which wells in the spot plate could become contaminated, leading to inaccurate results, and discuss how to prevent each.
draw the lewis structures and determine which of these molecules has a central atom that violates the octet rule.
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