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Bobot Jenis, Kerapatan, Sudut Diam

Total questions: 25

Worksheet time: 2hrs 5mins

Name
Class
Date
1.

Suatu besaran yang menyatakan rasio antara massa dengan volume adalah

a)

kerapatan

b)

bobot jenis

c)

spesific gravity

d)

berat jenis

e)

spesific volume

2.

Suatu besaran yang menyatakan rasio antara massa suatu zat dengan massa air pada volume yang sama adalah

a)

kerapatan

b)

bobot jenis

c)

spesific gravity

d)

berat jenis

e)

spesific volume

3.

Satuan SI untuk kerapatan adalah

a)

gml\frac{g}{ml}

b)

kgm3\frac{kg}{m^3}

c)

gcc\frac{g}{cc}

d)

tanpa satuan

4.

Satuan untuk spesific gravity adalah

a)

gml\frac{g}{ml}

b)

kgm3\frac{kg}{m^3}

c)

gcc\frac{g}{cc}

d)

tanpa satuan

5.

Berikut ini adalah penggunaan yang benar untuk berat, bobot, dan massa adalah..

a)

Berat Andi adalah 50 kg

b)

Bobot Budi adalah 62 Newton

c)

10 mL asam sulfat memiliki berat 18 g

d)

10 mL merkuri memiliki massa 136 g

6.

Alat untuk mengukur bobot jenis adalah

a)

piknometer

b)

gelas ukur

c)

pipet ukur

d)

timbangan

7.

Nama lain dari sudut diam adalah angle of repose

a)

Benar

b)

Salah

8.

Sudut diam merupakan sudut tetap yang terjadi antara timbunan partikel bentuk kerucut dengan bidang horizontal

a)

Benar

b)

Salah

9.

Besar kecilnya sudut diam tidak dipengaruhi oleh bentuk ukuran dan kelembaban serbuk.

a)

Benar

b)

Salah

10.

Lihat gambar, jika diketahui tinggi kolom dan diameter kerucut, maka untuk menghitung sudut diam kita bisa menggunakan fungsi?

a)

sin

b)

cos

c)

tan

d)

cosec

11.

Lihat gambar, jika diketahui tinggi kolom (h) dan diameter kerucut (D), maka rumus untuk menghitung sudut diam (a) adalah

a)

a=Tan−1(hD)a=Tan^{-1}\left(\frac{h}{D}\right)

b)

a=Tan−1(h0,5D)a=Tan^{-1}\left(\frac{h}{0,5D}\right)

c)

a=Tan−1(Dh)a=Tan^{-1}\left(\frac{D}{h}\right)

12.

Diketahui kolom granul yaitu

Tinggi (h) = 1,1 cm

Diameter = 10,25 cm


Hitunglah besar sudut diam dalam derajat!

a)

12,113

b)

12,114

c)

12,115

13.

If 250 mL of alcohol weighs 203 g, what

is its density

a)

0,812 g/mL

b)

1,23 g/mL

c)

0,812 kg/m30,812\ kg/m^3

d)

1,23 kg/m31,23\ kg/m^3

14.

If 500 mL of ferric chloride solution weighs 650 g, what is its specific gravity?

a)

1,3

b)

0,8

c)

1,3 g/ml

d)

0,8 g/ml

15.

A pycnometer weighs 21.62 g. Filled with water, it weighs 46.71 g; filled with another liquid, it weighs 43.28 g. Calculate the specific gravity of the liquid.

a)

0.863

b)

0.863 g/ml

c)

1,158 g/ml

d)

0,927

16.

A glass plummet weighs 14.35 g in air, 11.40 g when immersed in water, and 8.95 g when immersed in sulfuric acid. Calculate the specific gravity of the acid

a)

1.831

b)

1,273

c)

0,785

d)

1,259

17.

What is the weight, in kilograms, of 5 liters of sulfuric acid with a specific gravity of 1,84?

a)

9,2 kg

b)

9200 kg

c)

9,2 g

d)

2,71 kg

18.

What is the volume, in milliliters, of 1 kg of sulfuric acid with a specific gravity of 1.83?

a)

546.448 mL

b)

1,83 mL

c)

0,546 mL

d)

1830 mL

19.

Calculate the number of milliliters of polysorbate 80 required to prepare 48 100-g tubes of the following formula for a Progesterone vaginal cream.


»Progesterone, micronized 3g

»Polysorbate 80 1g

»Methylcellulose 2% Gel 96 g

a)

44,44 mL

b)

4444 mL

c)

4800 mL

d)

48 mL

20.

How many grams of dextrose are contained in a 250-mL intravenous infusion of a dextrose injection containing 60 g of dextrose per 100 mL if its specific gravity is 1.20?

a)

150 g

b)

250 g

c)

100 g

d)

120 g

e)

60 g

21.

A pycnometer is found to weigh 23,66 g when empty, 72,95 g when filled with water, and 73,56 g when filled with an unknown liquid. Calculate the specific gravity of the unknown liquid.

a)

1,012

b)

1,021

c)

1,022

d)

1,011

22.

A transdermal patch for smoking cessa­tion contains 30 mg of liquid nicotine per patch. If nicotine has a specific gravity of 1,01, how many milliliters of the agent are required to manufacture 1 million patches?

a)

29702,97 mL

b)

2970,297 mL

c)

297,0297 mL

d)

2970297 mL

23.

Cocoa butter (theobroma oil), which is solid at room temperature and melts at 34°C, has a specific gravity of 0,86. If a formula calls for 48 mL of theobroma oil, what would be the corresponding weight of cocoa butter to use?

a)

41,28 g

b)

41,28 mg

c)

412,8 mg

d)

412,8 g

24.

Two 10-mL samples of urine have specific gravities of 1,003 and 1,030. What is the difference in weight, in milligrams, be­tween the two samples?

a)

270 mg

b)

27 mg

c)

27 g

d)

270 mg

25.

If fifty glycerin suppositories are made from the following formula, how many milliliters of glycerin, having a specific gravity of 1,25, would be used in the preparation of 96 suppositories?

Glycerin 91 g

Sodium stearate 9 g

Purified water 5 g

a)

139,776 mL

b)

139,776 L

c)

1397,76 mL

d)

13,9776 mL

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