A solution contains 1810 MAe' nd 15-10 M P • Part A w Nal is added, wil Ael (K 3x 10") Phle (K 73x 10) cpitae fe Agl wil preipitate fest Phl, wi preciptate frnst Presteun Anwen v Correct Agl has a much amater K vale than Phly mngit le ble Thiretie, iwi preciphae est - Part Specity the concantalion of needed t begin pretipitation Espress your enswer using wo sigiticant figures

A solution contains 1810 MAe' nd 15-10 M P • Part A w Nal is added, wil Ael (K 3x 10") Phle (K 73x 10) cpitae fe Agl wil preipitate fest Phl, wi preciptate frnst Presteun Anwen v Correct Agl has a much amater K vale than Phly mngit le ble Thiretie, iwi preciphae est - Part Specity the concantalion of needed t begin pretipitation Espress your enswer using wo sigiticant figures

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Seconds(s) Tap H2OTemp (°C) Salt Solution(+ 2.5 mL salt)Temp (°C) Salt Solution(+ 5 mL salt)Temp (°C) 30 9 7 0 60 4 4 -1 90 3 2 -2 120 2 1 -2 150 1 1 -2 180 1 1 -2 210 1 1 -2 240 1 1 -2 270 1 1 -2 300 1 1 -2 330 1 1 -2 360 1 1 -2 390 1 1 -2 420 1 1 -3 450 1 1 -3 480 1 1 -3 510 1 1 -3 540 1 1 -3 570 1 1 -3 600 1 1 -3 Attach three (virtual) graphs. On one graph, plot the data from the tap water. On the other two graphs, plot the data from the salt solutions. Clearly label the freezing point on each graph.
5k MEOH
1-arr In a study of the gas phase decomposition of phosphine at 120 °C PH3(g)- →1/4 P4(g) + 3/2 H2(g) the concentration of PH3 was followed as a function of time. It was found that a graph of In[PH3] versus time in seconds gave a straight line with a slope of -2.50×10² s1 and a y-intercept of -3.24. Based on this plot, the reaction i v O order in PH, and the half life for the reaction is seconds. zero first second
A patient was prescribed Demerol syrup 75 mg PO q4h by his doctor to alleviate severe pain that he was experiencing. The pharmacist dispensed 120 mL of this syrup with a strength of 125 mg per teaspoonful. The total amount of Demerol that the patient needs per day is _________ mg, and the total volume of this syrup that the patient will consume in 2 days is _______ mL.
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You have just started working in an Urgent Care Clinic as a nurse. Mom brings in her 3 year old little boy, Brandon. Mom states that Brandon has been having fever up to 104F and he isn't eating or drinking anything because he feels very sick to his stomach, not to mention crabby! He's also been pulling a lot at his right ear and sounds congested. At the last well visit with the Pediatrician (about 2 weeks ago), Mom states that Brandon weighed 32 pounds. On exam today, his weight is 12.5 kg. Additionally his eyes are darkened and sunken, his mouth is dry with some white crusting around the lips. His temperature is 39C, other vitals signs are normal. Though he looks ill he appears to be medically stable. The doctor rushes in, quickly exams Brandon, diagnoses him with otitis media and then barks off orders to you that you then need to convey accurately to Mom. The orders include: push fluids, ibuprofen 10mg/kg every 6 hours if temp > 38C, and begin taking a 10-day course of…
For the reaction 2NO + Cl₂ Match the appropriate rate law to each postulated mechanism. A Rate = K[NO]²[Cl₂]² B Rate = k[Cl₂]² C Rate = K[NO][Cl₂] D Rate = K[NO]²[Cl₂] Rate = K[NO]² F Rate = k[Cl₂] 2NOCI NO + Cl₂ 2NOCI2 NOCI 3 G Rate = H Rate = K[NO] I None of the above K[NO][Cl₂]² NO + Cl₂ NOCI₂ + NO NOCI₂ →→NOCI 3 + NOCI slow → NOCI + Cl₂ fast Cl₂ → 2CI CI + NO fast equilibrium NOCI2 fast equilibrium 2NOCI slow slow NOCI fast
Calculate the value of [N 2] eg if [H 2] eq = 1.5 M, [NH 3) eq = 0.5 M, and Kc= 2. N 2(g) + 3 H 2(8) = 2 NH 3( 8) 0.037 M 0.15 M 0.062 M 0.019 M 0.17 M LE eal datic Intel em
5. This question has two parts a. and b. a. Assuming 100% yield, how much hexynyl lithium (in mmol) is produced from the reaction of LiHMDS with 1- hexyne? (mmol) b. Insert an image (.jpeg, png, .heic) showing all of your calculations for the moles of hexynyl lithium above. Note: Click on the image icon in the box below to upload/attach an image file. W
O O P AI
10. CHALLENGE. Calculate AHrxn. N2H4(1) + O2(g) → N2(g) + 2 H₂O(1) given: 2 NH3(g) + 3 N2O(g) → 4 N2(g) + 3 H2O(D) N2O(g) + 3 H2(g) → N2H4(D) + H₂O(1) ->> 2 NH3(g) + 12 O2(g) → N2H4(1) + H₂O(1) H₂(g) + O2(g) → H₂O(n) AH = -1013 kJ ΔΗ = -317 kJ AH = -142.9 kJ ΔΗ = -285.8 kJ
In the copper experiment, a copper wire dissolves in nitric acid, a gas evolves. What is the color, name and chemical formula of the gas? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).