How much does it cost to send a Christmas card from UK to
2023年9月1日 · Postage is expensive in Australia. Small or standard Christmas cards with sizes up to 120 x 240 x 5mm cost 65c to send, as of Christmas 2014. Larger cards with dimensions of up to 260 x 360 x 20mm ...
How do you make mM solution of ammonium formate? - Answers
2024年5月28日 · Ammonium formate has molecular weight of 63.05 To make 1 L of 1 M, you would weigh 63.05 g and dilute to 1000 mL of water. The make less, you weigh less e.g. if you want 0.5 M or 500 mM, you wiegh ...
How do you prepare 0.02 M of HCl? - Answers
2024年6月18日 · 0.02M=20mM(multiply x1000) From a 1M stock HCL I shall prepare 100ml of 20mM HCl by the following equation. V1N1=V2N2. 100mlx20mM=1000mMx"V2" V2=100x20/1000
How can you Prepare 5 N NaOH? - Answers
2024年11月24日 · Well, honey, preparing a 5 N NaOH solution is as easy as pie. Just measure out the appropriate amount of NaOH pellets and dissolve them in water until you reach the desired volume. Make sure to ...
What is the empirical formula for H2C2O4? - Answers
2024年5月31日 · What is the complete formula equation for H2C2O4 plus H2SO4? The equation for the reaction between oxalic acid (H2C2O4) and sulfuric acid (H2SO4) is: H2C2O4 + H2SO4 → CO2 + H2O + SO2 + H2O