Mass

Question 1

15.0 mL beaker + sponge = 21.0 mL water displaced?

Answer 1

6.0 mL

Question 2

15.0mL initially, 14.2 after, how much water missing

Answer 2

0.8 mL

Question 3

106.245 g metal in water, displaced by 13.5mL. Density?

Answer 3

1mL = 1cm^3 so
106.245 g / 13.5 mL =
7.87 g/cm^3

Question 4

50 gallons of water (1.2g/mL)

Answer 4

189.27L

Question 5

what is 189.27L at (1.2g/mL)
mass in kg?

Answer 5

189270 mL x 1.2g =227124 g =
227.1 kg

Question 6

227.1 kg in pounds

Answer 6

500.7 lb

Question 7

suspension: 150mg /0.950 mL
dose: 9mg / kg
1kg= 2.20lb
__mL for 198 lb person?

Answer 7

198 lbs x 1kg/ 2.20 lb x
9mg/1kg x 0.95mL / 125mg
lbs, kg , mg cancel =
6mL

Question 8

D: 19.3g/cm3
23.0kg = ____L?

Answer 8

find later

Question 9

acres to miles

Answer 9

divide by 640

Question 10

217g (2.7g/cm3)
V?(L)

Answer 10

217g / X = 2.7
79L

Question 11

125 km/ hour —-> miles/hr

Answer 11

1km= 0.62137 mi
125km= 77.7 m

Question 12

225g (1.83g/mL) —-> L

Answer 12

122.95mL

Question 13

20.07 g Iron + 13.01 g sulfur =

Answer 13

33.08 g iron sulfide

Question 14

pure element, pure compound, heterogenous mix, or homogenous mix:
baking soda

Answer 14

pure compound

Question 15

pure element, pure compound, heterogenous mix, or homogenous mix:
Atmospheric Air

Answer 15

homogenous mix

Question 16

pure element, pure compound, heterogenous mix, or homogenous mix:
liquid mercury

Answer 16

pure element

Question 17

pure element, pure compound, heterogenous mix, or homogenous mix:
noodles with broth

Answer 17

heterogenous mix

Question 18

pure element, pure compound, heterogenous mix, or homogenous mix:
gaterade

Answer 18

homogenous mix

Question 19

pure element, pure compound, heterogenous mix, or homogenous mix:
vinaigrette dressing

Answer 19

heterogeneous mix

Question 20

NaCl

Answer 20

pure compound