Find the final temperature go the H20(l) sample.
Atomic Weight of two elements 'A' and 'B' respectively are 32 and 16 .They combine to form two gases AB2 and AB4 and the Mixture is found to have a vapor density of 38.4. the no of...
if a piece of iron gain 10% of its weight due to partial rusting into Fe2o3 the % of total iron that has rusted is ?
One mol mixture of Feo and Fe3o4 containing equal moles of each on reaction with excess 02 give 'n' moles of Fe2o3 . Calculate 'N'
How many oxygen molecules are in 22.4 liters of oxygen gas at 273 K and 101.3 kPa? A)6.023 × 1023 B)1.2046 × 1024 C)2.24 × 10234 D)1.3491 × 1025
pls tell today itself
A student reacted with the following unknown metal, M, with HCI and collecyed the following data : mass of metal = 0.300, volume of water displaced = 227.3 mL, temperature of H2 =25C , barometric...
If 150g of carbon react with 250g of cl2 and the reaction has an 85% yield , how many gram of ccl4 are produced ?
2.5 g of a mixture of a BaO and CaO when heated with h2so4 ,produce 4.713g of the mixed sulphates . Find the percentage of BaO present in the mixture
solve the following problems. b sure to show all your work and use correct units for your answer.
no of oxygen atom in 10ml of h20 (l)
how to calculate mole of electron proton and nutron
If AgNO3 solution is added to a solution containing Br- ions until the silver ion concentration is 8.17 x 10-5, what is the Br- ion concentration? The Ksp for AgBr is 5.2 x 10-13
I'm also stuck on some other problems just like it. Could I have some simple step-by-steps, please? Thank you so much.
Is the valence for Boron .B: or .?. ? Explain this in terms of the molecular geometry.
When dealing with unbranched alkanes, the general trend is for boiling points to increase as CH2 groups are added. However, the boiling point increase between smaller alkanes, such as from Methane...
In lab today, we measured the actual yield and melting point of aspirin that we had made in lab last week. Our actual yield was 2.87 grams. The theoretical yield was 2.9 g, so the percent...
Equal weights of zinc and iodine react to form ZnI2 find the maximum weight ZnI2formed if 1gm of each was taken initially. Please answer me fast.
what is Physical quantity?
what is difference between chemical property and physical property?