WGU D425 Introduction to Chemistry -PA and OA ACTUAL EXAM (2026) 100%VERIFIED |complete QUESTIONS AND ANSWERS | GRADED A+ LATEST UPDATE ACTUAL EXAM 2

WGU D425 Introduction to Chemistry -PA and OA ACTUAL EXAM
(2026) 100%VERIFIED |complete QUESTIONS AND ANSWERS |
GRADED A+ LATEST UPDATE ACTUAL EXAM 2



Density converted between mass and volume of a
substance 30.2ml sample of ethyl alcohol with a mass of
23.71002g p=23.71002g/30.2ml=0.7851
p=


ANSWERS: p=0.785g/ml


Find mass of and object. density of alcohol is 0.7892g/mL, so alcohol is 0.7892g
per 1ml. determine the mass of alcohol for 2.0mL use
2.0mL*(0.7892g/1mL)=


ANSWERS: 1.5784g=1.5g


Density = mass/__________


ANSWERS: volume


Density of an object?
mass of 2.4019 and volume of 1.40mL
2.4019g/1.40mL=


ANSWERS: density = 1.7156g/mL= 1.72g/ml

,Density of an object?
volume of 32mL and a mass of 12.24g
12.24g/32mL


ANSWERS: density= 0.3825g/mL=0.38g/mL


density of an object?
mass of
78.2g/14.2cm^3


ANSWERS: density= 5.507g/cm= 5.51g/cm^3

density of an
object?
22.57cm^3/55g


ANSWERS: density= 2.43686g/cm^3= 2.4g/cm^3

density of an
object?
85g/35mL


ANSWERS: density= 2.42857 g/mL= 2.4g/mL

what is the mass of 25.0mL of octane, with a density of 0.702 g/cm
-Given:25.0mL
conversion factors:
1.1mL
2.0.0702=1cm^3 (mL->cm^3->g)
25.0mL1cm^3/mL0.702g=


ANSWERS: density= 17.55g= 17.6g

,the density of titanium is 4.51g/cm^3. What is the volume in cubic inches of
3.5Ib of titanium?
conversion factors:
1) 2,2Ib=1Kg
2) 1Kg=10^3g
3) 4.51g= 1cm^3
4) 2.54cm= 1 in Find
in^3 Ib-> Kg -> g->
cm^3 -> in^3
3.5Ib
1Kg/2.2Ib10^3g/1Kg1cm^3/4.51g1in/2.54cm
must multiply
(1in/2.54cm)^3=1in^3/16.387cm^3
3.5Ib1Kg/2.2Ib10^3g/1Kg1cm^31in^3*16.38cm
^3


ANSWERS: density= 21.53in^3= 22in^3

Calculate the density in g/mL of aluminum with a volume of 0.6cm^3 and a
mass of 4.6mg?
Given: 4.6mg and 0.6cm^3
Formula for Density: mass (g)/volume(ml)
Find: Density:1) mg->g 4.6mg*10^-
3g/1mg=
4.6*10^-3g=
2) cm^3->mL 0.6cm^3*1mL/1cm^3=0.6mL
step 1 by step 2
3) Divide g/mL 4.6*10^-3/mL=


ANSWERS: Density= 0.008 g/mL

what is the density in g/cm^3 of an unknow solution containing 2.3kg and 8.0L


ANSWERS: Density = 0.29g/cm^3

, If ethanol has a density of 0.789 g/mL and a mass of 36.4g. Find the volume in mL


ANSWERS: Density= 41.6mL


The density of a solution is 0.791 g/cm^3. What is the volume in cubic inches
of 2.7 Ib of the solution?


ANSWERS: 95 in^3


how many centimeters are in 1.24m?


ANSWERS:
100cm=1m
124cm


Calculate the density of a 74.5ml sample of a substance with a mass of 25.92g.


ANSWERS:
Density=Mass/Volu
me 0.348


Calculate the density of a 55cm^3 sample of a substance with a mass of 13.4g


ANSWERS:
Density=Mass/Volu
me 0.24
2 Sig FIgs

how many millimeters are in 34 meters


ANSWERS:
1000mm=1m
34,000 meters