Reference no: EM131054388
Assume that a nickel weighs exactly 5.038650 g. For the sets of weights listed below, obtained by a single weighing on an analytical balance similar to the type you used, indicate in the space provided which statement best describes the set of data:
if the data are accurate and precise, write AP
if the data are accurate but not precise, write A
if the data are precise but not accurate, write P
if the data are neither accurate nor precise, write NAP
Set 1: 5.0365g, 5.0371 g, 5.0388 g ______
Set 2: 5.0378 g, 5.0401 g, 5.0385 g ______
Set 3: 5.0387 g, 5.0384 g, 5.0383 g ____
Set 4: 5.0377 g, 5.0373 g, 5.0375 g
|
Value of the rate constant
: At 25 C the reaction is first order in CH3CH2Cl, the rate constant is 1.0E-3 and the A factor is 3.4E14. What is the value of the rate constant at 40 C?
|
|
Find the projected number of machines
: Math 233 Unit 2 Individual Project. Find the value of S'(9). Interpret the meaning of S(9) and S'(9). Using the tangent line approximation method, find the projected number of machines that will be infected after 10 days
|
|
Balanced chemical equation
: Based on the balanced chemical equation, given that 2.0 g of Na2CO3(molecular weight = 58.44 g/mol) was added to the reaction, how many mL of H2O (molecular weight = 18.00 g/mol) were produced? Remember that moles = mass/molecular weight and that ..
|
|
Ratio of atoms of hydrogen to atoms of oxygen
: What is the ratio of atoms of hydrogen to atoms of oxygen, H:O, in ammonium sulfate, (NH4)2SO4? Please explain.
|
|
Single weighing on an analytical balance
: Assume that a nickel weighs exactly 5.038650 g. For the sets of weights listed below, obtained by a single weighing on an analytical balance similar to the type you used, indicate in the space provided which statement best describes the set of dat..
|
|
Discuss a current crisis in the news
: Research, present and discuss a current crisis in the news, and relate it to the Crisis Management Program components. What stage is the crisis in, and how would you improve the management of the crisis? Support your response with research, cited ..
|
|
Role of the mg in preventing corrosion
: a. What is the role of the Mg in preventing corrosion? b. What qualities must a metal like Mg have to prevent oxidation of another metal? c. Calculate the K for corrosion with Fe present. Assume standard conditions.
|
|
What is the percent field
: Which is the best estimate of the pH of a solution that has a hydroxide ion concentration of 1.25 x 10^ -5M? Excess oxygen gas reacts with 244 g of iron to produce 332 g of Fe2O3. What is the percent field?
|
|
Pressure of c equal
: Suppose you have 1 atm of gas A and 1 atm of gas B. If A and B react to form C with a 1 A: 1 B: 1 C stoichiometry, what will the pressure of C equal?
|