1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Afina-wow [57]
3 years ago
9

A graduated cylinder contains 15.75 mL of water. A metal that weighs 31.745 g is added. The final reading is 38.55 mL. Using the

correct number of significant figures, determine the density of the metal = _____ g/mL First Determine Volume of Metal: Report result to the same number of decimal places as the number with the least number of decimal places. Use this volume in calculation. Second Determine Density of metal: D=M/V Report result to the same number of significant figures as the number with the least number of significant figures. Do not use exponential notation in answer.
Chemistry
1 answer:
Butoxors [25]3 years ago
7 0
V = 38.55 mL - 15.75 mL = 22.80 mL = 22.80 cm³

D = \frac{M}{V} = \frac{31.745 g}{ 22.80 cm^{3} } = 1.392 g/cm³
You might be interested in
Which element is correctly classified
saul85 [17]

Answer:

Air is a qualified element

4 0
3 years ago
An FAS calibration curve (absorbance, y-axis vs. FAS in g/mL) gave an equation he regression line of: y-3678(x)+0.056. If an unk
mezya [45]

Answer:

FAS concentration = 1.61*10^-4M

Explanation:

Beer Lambert's law relates the absorbance (A) of a substance to its concentration (c) as:

A = \epsilon lc----(1)

where ε = molar absorption coefficient

l = path length

A plot of 'A' vs 'c' gives a straight line with slope = εl

In addition absorbance (A) is related to % Transmittance (%T) as:

A = 2-log%T----(2)

For the FAS solution, the corresponding calibration fit is given as:

y = 3678(x) + 0.056

This implies that the slope = εl = 3678

It is given that %T = 25.6%

A = 2-log(25.6)=0.592

Based on equation(1):

c = \frac{A}{\epsilon l}=\frac{0.592}{3678}=1.61*10^{-4}M

8 0
3 years ago
Can some one tell me the best position in sex
masya89 [10]

Answer:

speedbump and magician

Explanation:

8 0
3 years ago
Which of the following would dissolve in water?<br> CCl4<br> LiCl<br> CH4<br> PCl6
babymother [125]
Like dissolves like
so water is polar

CCl4 is nonpolar
LiCl is polar
CH4 is nonpolar
PCl6 is nonpolar

so LiCl would dissolve
7 0
3 years ago
Read 2 more answers
Explain why smell is a physical property?
lawyer [7]

Answer:

because no chemical change is happening

Explanation:

5 0
3 years ago
Other questions:
  • I need help with this study island question thank u
    15·1 answer
  • What are the empirical formula and empirical formula mass for N2S3
    15·1 answer
  • Identify the characteristics of earth that makes it a special place
    5·1 answer
  • Can i titrate a solution of unknown concentration with another solution of unknown concentration and still get a meaningful answ
    15·1 answer
  • A scientist is using robots to perform thousands of experiments on different
    6·1 answer
  • What type of reaction is Fe+H2O=Fe3O4+H2
    11·2 answers
  • Calculate the percentage of yield when 20 grams of sodium chloride solution reacts with an excess amount of silver nitrate solut
    9·1 answer
  • 1) 50.0 mL of water is measured out in a graduated cylinder. A rock with the mass of
    6·1 answer
  • Two posssible lewis structures for the molecule ch2s are given. determine the formal charge on each atom in both structures
    6·1 answer
  • Ammonia, NH3(g), can be used as a substitute for fossil fuels in some internal combustion
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!