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twynna

Questions (40)

How many moles of argon gas are present in 70L of volume with a pressure of 180atm at 21C?
1. 1 answer
2. 596 views
A sample of helium gas has a volume of 325L at 25C and at 5atm. At what temperature the gas can be compressed at 50atm to a
1. 2 answers
2. 1,229 views
Calculate the number of atoms in each of the following.A)1.50g potassium B)0.470g of oxygen C)0.555g of silver chlorate,AgCIO3
1. 1 answer
2. 776 views
Complete, Balance and classify the chemical reaction....please help do not understandA)Li(s)+AuCL3(aq)->
1. 1 answer
2. 708 views
Calculate the percentages of C,H,and O in C22H44O22.
1. 1 answer
2. 436 views
Concentrated nitric acid is 16M. What volume of nitric acid must be diluted with distilled water to preapre 5L of 0.1M nitric
1. 0 answers
2. 638 views
What is the molar concentration of calcium hydroxide that has 0.185g solute in 100ml solution?
1. 0 answers
2. 458 views
Concentrated HCI is 12M. What is the molarity of an HCI solution prepared by dilluting 10ml concentrated HCI to a total volume
1. 0 answers
2. 601 views
Calculate the molar concentrations for each of the following solutions:A)1.5g NaCI in 100 ml solution B)1.5g K2Cr2O7 in 100 ml
1. 0 answers
2. 641 views
How would you prepare the following solutions?A)2%NaCL(w/v) B)0.35M glucose C)0.12M CaCI2
1. 0 answers
2. 407 views
What volume of a 0.34M MgCI2 soultion is required to make 250ml of a 0.10M solution by dillution?
1. 0 answers
2. 436 views
How many grams of NaOH are there in 2.5L of a 0.343 M solution?
1. 1 answer
2. 434 views
How many moles of Kbr are there in 35.8ml of a 0.172M solution?
1. 1 answer
2. 418 views
How many moles of argon gas are present in 70L of volume with a pressure of 180atm at 21c?
1. 0 answers
2. 430 views
A sample of helium gas has a volume of 325L at 25C and at 5atm. At what temperature the gas can be compressed at 50atm to a
1. 1 answer
2. 1,036 views
Concentrated nitric acid is 16M. What volume of nitric acid must be diluted with distilled water to prepare 5L of 0.1M nitric
1. 5 answers
2. 1,716 views
What is the molar concentration of calcium hydroxide that has 0.185g solute in 100ml solution?
1. 4 answers
2. 1,216 views
A sample of helium gas has a volume of 325L at 25C and at 5atm. At what temperature the gas can be compressed at 50atm to a
1. 1 answer
2. 673 views
what volume of a 0.34M MgCI2, solution is required to make 250ml of a 0.10M solution by dilution?
1. 1 answer
2. 518 views
How many grams of NaOH are there in 2.5L of a 0.343M solution?
1. 1 answer
2. 336 views
How many moles of KBr are there in 35.8ml of a 0.172M solution?
1. 1 answer
2. 514 views
Calculate the number of grams in each of the following:A)0.5 moles of F2 B)10.25 moles of H2 C)11.3 moles of BaSO4
1. 2 answers
2. 508 views
Calculate the number of moles and atoms.A)64 gm of O2 B)58.9 gm of CI C)90.5gm of (HN4)2SO4 D)243gm of Mg2
1. 1 answer
2. 929 views
How many grams are there in 2 moles of each of the following?A)Xe2 B)C6H12O6 C)CH3COOMg
1. 1 answer
2. 407 views
Calculate the empirical formula of each compound from the mass-composition data given below.A)41%N and 59%O B)45%Na,23%P and
1. 1 answer
2. 492 views
Calculate the percentages of C,H,and O in C24H44O22.
1. 1 answer
2. 431 views
Calculate the formula mass of each of the following compounds:A)H2O3 B)AI2I6 C)C10H22 D)C6H8O6 E)K2CR2O7 F)C56H88O2
1. 1 answer
2. 578 views
How many grams of NaOH are there in 2.5L of a 0.343M solution?
1. 1 answer
2. 412 views
How many moles of KBr are there in 35.8ml of a 0.172M solution?
1. 0 answers
2. 363 views
How many moles of KBr are there in 35.8ml of a 0.172M solution?
1. 0 answers
2. 397 views
what is the % mass/volume (%W/V)of KOH in 60ml of a solution that contains 5gn of KOH?
1. 1 answer
2. 627 views
How many moles of argon gas are present in 70l of volume with a pressure of 280atm at 21c?
1. 1 answer
2. 494 views
The volume of a gas is 435ml at 25c and at 740mmHg.What would be its new volume at STP?
1. 1 answer
2. 405 views
A sample of helium gas has a volume of 325l at 25c and at 5atm. At what temperature the gas can be compressed at 50atm to a
1. 1 answer
2. 522 views
Calculate the number of moles and atoms.A)64 gm of O2 B)58.9gm of CI C)90.5gm of (NH4)2SO4 D)243gm of Mg2 Please help i have NO
1. 1 answer
2. 1,167 views
How many grams are there in 2 moles of each of the following?A)Xe2 B)C6H12O6 C)CH3COOMg
1. 1 answer
2. 395 views
What is the name of the following compounds?A)CO B)HCI2O
1. 1 answer
2. 541 views
Do 65 grams of oxygen and 44 grams of carbon contain equal number of atoms? Calculate the number of atoms?
1. 1 answer
2. 482 views
What is the percentage composition of nitrogen in silver nitrate?
1. 1 answer
2. 1,611 views
How many grams are there in 2 moles of sodium?
1. 1 answer
2. 425 views

Answers (1)

Can you show me how to work this out. Or give me an example. Please and Thanks

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