Discuss the Difference Between an Exploratory Analysis and a Confirmatory
The following data is for questions 3 through 8.
(1) Mass of test tube + MnO2 21.5403 g
(2) Mass of test tube + MnO2 + KClO3 + KCl 22.5518 g
(3) Constant mass of test tube + reaction product 22.3514 g
3. Mass of O2 released ____________________
4. Moles of O2 released ____________________
5. Moles of KClO3 required by the moles of O2 released ____________________
6. Mass of KClO3 required ____________________
7. Mass of KClO3 & KCl mixture ____________________
8. Percent of KClO3 in KClO3 & KCl mixture ____________________
9. If there were 0.5011 g KClO3 in the original ____________________
mixture, what is the true percent of KClO3?
An aqueous CaCl2 solution has a vapor pressure of 82.1 mmhg at 50 C . The vapor pressure of pure water at this temperature is 92.6 mmhg What is the concentration of in mass percent?
Change in pressure is directly proportional to mass fraction of solute.(Po – P) /Po = x(92.6 – 82.1)/92.6 = xX = 0.113 or 11.3 %
I have a paper I need to write regarding young girls with cognitive learning delays and STD’s.
I need creative ways on how to teach them safe sex practices and how I could help them to understand that having sex to be popular is not safe, not true and is actually sexual cohertion. Please include any references.
I need help with this question a and b. consider a skier heading down a 7.5 slope.
Class Management | HelpHomework 3 (Copy 1) Begin Date: 2/20/2019 12:01:00 AM — Due Date: 3/5/2019 11:59:00 PM End Date: 3/5/2019 11:59:00 PM(4%) Problem 25: Consider a skier heading down a 7.5 slope. Assume the coefficient of friction for waxed wood on wet snow isUk=0.10 and use a coordinate system in which down the slope is positive.Randomized Variables0=7.504 50% Part (a) Calculate the acceleration of the skier in m/s?.a =Grade SummaryDeductions0%Potential100%sin()cos()tan()I ( ) 7 8 9HOMESubmissionscotan()asin()acos()14 ^/ 4 5 6Attempts remaining: 4(4% per attempt)detailed view*atan()acotan()sinh()1 2 3cosh()tanh()cotanh()+0ENDDegrees O RadiansVO)BACKSPACEDELCLEARSubmitHintFeedbackI give up!Hints: 4% deduction per hint. Hints remaining: 4Feedback: 5% deduction per feedback.50% Part (b) Find the angle of the slope down which this skier could coast at a constant velocity in degrees.
What is the toxic quantity is 1.8 g of ethylene glycol per 1000 g of body mass, what percentage of ethylene glycol is fatal expressed into two significant figures and that which contain the appropriate units?
A 53.8-mg sample of sodium perchlorate contains radioactive chlorine-36 (whose atomic mass is 36.0 amu). If 29.6% of the chlorine atoms in the sample are chlorine-36 and the remainder are naturally occurring no radioactive chlorine atoms, how many disintegrations per second are produced by this sample? The half life of chlorine-36 is 3.0*10^5 yr.
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willillillusity WistillLe fulllililil I see Sellloll 1 . 4 )1. Find the distance to a Sun – like star ( 1 = 3. 8×10 4′ `10` watts ) whose apparent brightness at Earth is 1. 0 x 10watt in .B. You measure the apparent brightness of a particular star to be 2. 5 x 10`’ watthmm . A parallaxmeasurement shows the star’s distance to be 42 light- years , or about 4 x 10*’ meters . What is thestars luminosity?
Laboratory scientists have created the electric and magnetic fields shown in the figure.(Figure 1) These fields are also seen by scientists that zoom past in a rocket traveling in the x-direction at 1.0×10^6m/s. Assume that B = 0.58 T and E = 1.3×10^6 V/m . According to the rocket scientists, what angle does the electric field make with the axis of the rocket?
in a typical volcanic eruption, 3.50*10^8 kg SO4 may be produced. if this amount of SO2 were converted to H2SO4 according to the two-step process given below, how many kilograms of H2SO4 would be produced from such an eruption
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