WGU D425 Introduction to Chemistry -PA and OA ACTUAL EXAM(2025) 100%VERIFIED |complete QUESTIONS AND ANSWERS | GRADED A+.

WGU D425 Introduction to Chemistry -PA and OA ACTUAL
EXAM(2025) 100%VERIFIED |complete QUESTIONS AND
ANSWERS | GRADED A+.



Calculate the density of 10.4ml sample of a substance with a mass of
35.12g. Enter the answer in the correct number of significant figures and
include the unit g/ml - (ANSWERS)


Convert 12.5g in to kilograms. Enter answer in kg - (ANSWERS)0.0125


Calculate the density of an object that has a mass of 19.378 and a volume of
15ml. Enter as g/ml - (ANSWERS)


A substance has a mass of 42.10g. If the density of the substance is known
to be 2.431g/ml what volume of substance is present - (ANSWERS)


Several samples of a metal weighed and placed into a graduated cylinder
filled with water to measure their volume by water displacement -
(ANSWERS)


Several samples of metal were weighed and placed into the graduated
cylinder filled water to measure their volume by water displacement q -
(ANSWERS)




,WGU D425 Introduction to Chemistry -PA and OA ACTUAL
EXAM(2025) 100%VERIFIED |complete QUESTIONS AND
ANSWERS | GRADED A+.



Dimensional Analysis Ex.
How many centimeters are there in 3.55m
Quantity given: 3.55m
3.55m * (100cm/1m)= - (ANSWERS)3.55m=355cm


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?


,WGU D425 Introduction to Chemistry -PA and OA ACTUAL
EXAM(2025) 100%VERIFIED |complete QUESTIONS AND
ANSWERS | GRADED A+.



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)
25.0ml*1cm^3/ml*0.702g= - (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?


, WGU D425 Introduction to Chemistry -PA and OA ACTUAL
EXAM(2025) 100%VERIFIED |complete QUESTIONS AND
ANSWERS | GRADED A+.



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/2.2Ib*10^3g/1Kg*1cm^3/4.51g*1in/2.54cm
Must multiply (1in/2.54cm)^3=1in^3/16.387cm^3
3.5Ib*1Kg/2.2Ib*10^3g/1Kg*1cm^3*1in^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