85.7 grams of platinum = to how many atoms of platinum?
1. 85.7 grams of platinum = to how many atoms of platinum?
Solution:
[tex]\text{number of Pt atoms = 85.7 g Pt} × \frac{\text{1 mol Pt}}{\text{195.1 g Pt}} × \frac{\text{6.022 × 10²³ Pt atoms}}{\text{1 mol Pt}}[/tex]
[tex]\boxed{\text{number of Pt atoms = 2.645 × 10²³ atoms}}[/tex]
#CarryOnLearning
2. The density of platinum is 23.4 g/cm3 . Calculate the mass of 75.0 cm3 of platinum.
Answer:
Hope you understand my solution. I'm a newbie here!
Explanation:
Density = Mass / Volume
Mass = Density x Volume
Mass = 23.4 g/cm3 x 75.0cm3
Mass = 1755 grams
3. Is platinum a mixture
Answer:
Platinum is a pure substance - its a transition metal
Explanation:
GIVENIs platinum a mixture
ANSWERPLATINUMIs a chemical element that have a symbol of Pt and have a atomic number 78. The word platinum come from a spanish word platino which means "little silver"Natural platinum is a mixture of six isotopes:
platinum-190 platinum-192 platinum-194 platinum-195platinum-196 platinum-198#CarryOnLearning
4. what is characteristic of platinum
Answer:
Platinum is a precious metal; soft, silvery-white, and dense with a beautiful lustrous sheen. It is malleable and ductile and has a high melting point.
Platinum does not oxidize in air even at high temperatures and is unaffected by common acids.
It dissolves in aqua regia (mixture of nitric acid and hydrochloric acid in the ratio 1:3) forming chloroplatinic acid (H2PtCl6).
It is also corroded by halogens, cyanides, sulfur, and caustic alkalis.
Explanation:
source: https://www.lookchem.com/Periodic-Table/Platinum/
5. Mag tiyak na platinum
Answer:
huhhh picture po
Explanation:
para ma sagotan
6. Is platinum is element or compund?
Answer:
element
Explanation:
7. platinum 5metacoltdiamond
Answer: Ano yung tanong?
8. Sino si Star platinum
Answer:
Here's the link
Step-by-step explanation:
https://images.search.yahoo.com/search/images;_ylt=Awr9ImkhT6NgK90AcC1XNyoA;_ylu=Y29sbwNncTEEcG9zAzEEdnRpZAMEc2VjA3BpdnM-?p=Star+platinum+%E2%80%8B&fr2=piv-web&fr=mcafee
9. Platinum heterogenous or homogenous mixture?
Answer:
heterogenous po welcome
10. what is the characteristics of platinum
Answer:
Characteristics: Platinum is a precious metal; soft, silvery-white, and dense with a beautiful lustrous sheen. It is malleable and ductile and has a high melting point. Platinum does not oxidize in air even at high temperatures and is unaffected by common acids.
Atomic radius: 135 pm
Atomic weight: 195.09
Electron affinity: 205.3 kJ mol
Color: silvery-white
11. what is the number of electrons of platinum
Answer:
#78 - Platinum - Pt
Explanation:
#carryonlearning❤️
Explanation:
# of protons = 78
# of electrons = 78
# of neutrons = 117
12. platinum kasing tunog
Answer:
Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name is derived from the Spanish term platino, meaning "little silver". ... Platinum is one of the least reactive metals.
Explanation:
13. what is the atomic number of platinum
Answer:
78
source: my own chart of table of elements
Explanation:
hope it helps
study well ❤️
Answer:
The atomic number of platinum is 78.
(・∀・)
14. 45.7 moles of copper=________atoms of copper85.7 grams of platinum=_______atoms of platinum 63.9 grams of carbon dioxide =________molecules of carbon dioxide
Answer:
45.7
Explanation:
kahehhduabduhdbgtuj
15. Platinum solution science 8
What is Platinum?
Platinum with the atomic number 78 and an atomic mass of 195 in the periodic table is an extremely rare element found in the crust of the earth.
The word Platinum is derived from Platina (Spanish word meaning ‘little silver’), because of its grey-white silvery colour. With an availability of 5g/kg in the earth’s crust, it is one of the rarest elements and is highly valuable for the same reason. Although it was discovered relatively later by European scientists, it has been found in Egyptian tombs dating back to 1200 BC.
Uses of Platinum
It is also used in laboratories for electrodes. Optical fibres, wires, and pacemakers also make use of platinum for better efficiency. Certain compounds of platinum are used in chemotherapy for treating cancer. Some watchmakers use platinum in their watches to make it exclusive. Because of its stable physical and chemical properties, platinum metal is a very useful metal. Despite its rarity, its application is quite widespread. Because of its high stability, platinum is used extensively as a catalyst for chemical reactions. The most common application of this is the Catalytic Converter in cars which converts the Carbon monoxide (CO) and other residual pollutants into Carbon dioxide (CO2) and water vapour. The high malleability, ductility, and inertness of the metal make it especially suitable for making jewellery. Around half of the platinum extracted every year goes into making jewellery.16. What is the electron configuration of Platinum
Answer:
[Xe] 4f14 5d9 6s1
Explanation:
There!
17. platinum o choromite
Answer:
i would prefer platinum because it is more durable and expensive
platinum
Explanation:
sana makatulong sau
18. platinum 5metacolt
Answer:
the right and left solution of situation perfect line of life from math
19. What is the melting point of platinum
1,768○C because of yhis is I like it.
20. What are the uses of platinum?
ANSWER: Platinum is also used for electrical components, thermocouple elements, corrosion-resistance apparatuses and dentistry.
Platinum is used extensively for jewelry, manufactured into metal gauzes for nitric acid production and as a catalyst to improve the efficiency of fuel cells. In medicine, platinum compounds are important for chemotherapy.
In 2010, 245 tons of platinum were sold. Of the platinum sold, 113 tons were used for vehicle emissions control devices, 76 tons for jewelry and 35.5 tons went to further the advancement other applications, such as investment, electrodes, anticancer drugs, oxygen sensors, spark plugs and turbine engines. Platinum is used as an alloy agent for various metal products, including fine wires, non-corrosive laboratory containers, medicinal instruments, dental prostheses, electrical contacts and thermocouples. Platinum-cobalt is used to make strong permanent magnets. Platinum-based anodes are used in ships, pipelines and steel piers.
According to the Geological Survey, platinum is also important as a catalyst in synthetic organic chemistry. It is also used as a catalyst in the form of gauze for the partial oxidation of ammonia to yield nitric oxide in fertilizers, explosives and nitric acid.
^_^
21. Platinum has a density of 22.5 g/cc, what is the mass in pounds (1lbs) of 5.9 cm 3 of platinum?
Answer:
0.2904 lbs of Platinum
Explanation:
note that cc is cubic centimeter:
Using the density formula,
D=m/V
22.5g/cm^3=mass(m)/5.9cm^3
m=22.5g(5.9) ---- cc cancels out
m=132.75g
convert g to lbs using the following conversion factors
1 kg=1000 g
1 kg = 2.2 lb
m=132.75g (1 kg / 1000g)(2.2lbs/1kg)
m=132.75(2.2)/1000 lbs
m=290.4/1000 lbs
m=0.2904 lbs
22. platinum(Pt) Element or compound
Answer:
element
Explanation:
hoping it's helpful
Answer:
Platinum is an element.
Explanation:
For more information, kindly visit the following links:
https://brainly.ph/question/1568744
https://brainly.ph/question/3238850
#CarryOnLearning :)
23. what is atomic no. of platinum?
Answer:
my own
Explanation:
my own chart tablet of element
Answer:
The atomic number of platinum is 78.
Explanation:
according to the periodic table.
24. What is the chemical equation of the following: 1. Ammonium Phosphate reacts with Platinum(IV) Acetate to yield Ammonium Acetate and Platinum (IV) phosphate?
Answer:
what idont have think
Explanation:
I'm sorry
Answer:
(NH4)3PO4 + Pt(C2H3O2)4 → C₂H₇NO₂ + Pt3(PO4)4
25. STAR PLATINUM: THE WORLD!
Answer:
Anong title Po Nyan? looks interesting
26. 2 chemical properties of platinum
Answer:
•Density: 21.5 g/cc.
•Hardness: 4.3 (between fluorite and apatite on the Mohs hardness scale).
27. what is platinum metal or nonmetal
Answer:
the is trans and the is non trans
Explanation:
28. 1. What PDF can do?2. How to create a PDF file with Microsoft PowerPoint?3. How to save a PDF file with Microsoft word4. Installing the Save as PDF plug-in
Answer:
1. Secure document from being modified or edited.
2. Use the Print function. Print as PDF.
3. Use Export. Create PDF/XPS Document
4. Go to Options > Add Ins
Explanation:
29. Places where platinum is found in the philippines.
east cagayan valley po
30. What is the different of titanium and platinum?
Titanium is the element with the atomic number 22 and the symbol Ti while
Platinum or Pt is the transition metal with the atomic number 78.
